Patent US4357318A successfully refreshed from Google Patents.
US4357318A
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Dentifrices with improved soluble fluoride availability
Assignee: Richardson Vicks Inc
•
Filing: 1981-07-31
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Granted: 1982-11-02
•
Expires: 2001-07-31
Abstract
Abstract Dentifrice preparations having improved soluble fluoride availability are obtained by incorporation of a dibasic alkali metal phosphate either alone or in combination with a calcium ion chelating agent.
Inventors
- 👤 Nutan B. Shah
- 👤 Nicholas F. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:43
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/24; A61K8/30; A61K8/40; A61K8/44; A61K2800/00; A61K2800/40; A61K2800/51
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
50 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective abrasive amount of calcium carbonate and from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate, said dentifrice being devoid of benzyl alcohol.
Claim 2
Dependent Claim
50 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective abrasive amount of calcium carbonate and from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate, said dentifrice being devoid of benzyl alcohol.
Claim 3
Dependent Claim
12 words
The dentifrice of claim 1 wherein said monofluorophosphate salt is sodium monofluorophosphate.
Claim 4
Dependent Claim
15 words
The dentifrice of claim 1 wherein said dibasic alkali metal phosphate is dibasic sodium phosphate.
Claim 5
Dependent Claim
64 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective abrasive amount of calcium carbonate, from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate and from about 0.1 to about 1.0 percent by weight of a calcium ion chelator, said dentifrice being devoid of benzyl alcohol.
Claim 6
Dependent Claim
64 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective abrasive amount of calcium carbonate, from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate and from about 0.1 to about 1.0 percent by weight of a calcium ion chelator, said dentifrice being devoid of benzyl alcohol.
Claim 7
Dependent Claim
22 words
The dentifrice of claim 4 wherein said monofluorophosphate salt is sodium monofluorophosphate and said dibasic alkali metal phosphate is dibasic sodium phosphate.
Claim 8
Dependent Claim
17 words
The dentifrice of claim 4 wherein said calcium ion chelator is sodium hexametaphosphate or tetrasodium ethylenediamine tetraacetate.
Claim 9
Dependent Claim
66 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective abrasive amount of calcium carbonate, and, as the sole component for increasing retention of said monofluorophosphte as a source of soluble fluoride, from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate, said dentifrice being devoid of benzyl alcohol.
Claim 10
Dependent Claim
66 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective abrasive amount of calcium carbonate, and, as the sole component for increasing retention of said monofluorophosphte as a source of soluble fluoride, from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate, said dentifrice being devoid of benzyl alcohol.
Claim 11
Dependent Claim
12 words
The dentifrice of claim 7 wherein said monofluorophosphate salt is sodium monofluorophosphate.
Claim 12
Dependent Claim
15 words
The dentifrice of claim 7 wherein said dibasic alkali metal phosphate is dibasic sodium phosphate.
Claim 13
Dependent Claim
23 words
The dentifrice of claim 7 to which is added from about 0.1 to about 1.0 percent by weight of a calcium ion chelator.
Claim 14
Dependent Claim
25 words
The dentifrice of claim 7 to which is added from about 0.1 to about 1.0 percent by weight of sodium hexametaphosphate or tetrasodium ethylenediamine tetraacetate.
Claim 15
Dependent Claim
69 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate and from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate as the sole component for increasing retention of said monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 16
Dependent Claim
69 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate and from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate as the sole component for increasing retention of said monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 17
Dependent Claim
14 words
The dentifrice of claim 12 wherein said monofluorophosphate salt is an alkali metal monofluorophosphate.
Claim 18
Dependent Claim
12 words
The dentifrice of claim 12 wherein said monofluorophosphate salt is sodium monofluorophosphate.
Claim 19
Dependent Claim
16 words
The dentifrice of claim 12 wherein said dibasic alkali metal phosphate salt is dibasic sodium phosphate.
Claim 20
Dependent Claim
65 words
A dentifrice comprising sodium monofluorophosphate as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate and from about 0.3 to about 1.0 percent by weight of a dibasic sodium phosphate as the sole component for increasing retention of said monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 21
Dependent Claim
65 words
A dentifrice comprising sodium monofluorophosphate as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate and from about 0.3 to about 1.0 percent by weight of a dibasic sodium phosphate as the sole component for increasing retention of said monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 22
Dependent Claim
89 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate, from about 0.1 to about 1.0 percent by weight of a calcium ion chelator and from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate as the sole component, other than said calcium ion chelator, for increasing retention of said monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 23
Dependent Claim
89 words
A dentifrice comprising a water soluble monofluorophosphate salt as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate, from about 0.1 to about 1.0 percent by weight of a calcium ion chelator and from about 0.3 to about 1.0 percent by weight of a dibasic alkali metal phosphate as the sole component, other than said calcium ion chelator, for increasing retention of said monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 24
Dependent Claim
14 words
The dentifrice of claim 17 wherein said monofluorophosphate salt is an alkali metal monofluorophosphate.
Claim 25
Dependent Claim
12 words
The dentifrice of claim 17 wherein said monofluorophosphate salt is sodium monofluorophosphate.
Claim 26
Dependent Claim
15 words
The dentifrice of claim 17 wherein said dibasic alkali metal phosphate is dibasic sodium phosphate.
Claim 27
Dependent Claim
13 words
The dentifrice of claim 17 wherein said calcium ion chelator is sodium hexametaphosphate.
Claim 28
Dependent Claim
19 words
The dentifrice of claim 17 wherein said calcium ion chelator is a water soluble salt of ethylenediamine tetraacetic acid.
Claim 29
Dependent Claim
14 words
The dentifrice of claim 17 wherein said calcium ion chelator is tetrasodium ethylenediamine tetraacetate.
Claim 30
Dependent Claim
83 words
A dental cream comprising sodium monofluorophosphate as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate, from about 0.1 to about 1.0 percent by weight of sodium hexametaphosphate and from about 0.3 to about 1.0 percent by weight of dibasic sodium phosphate as the sole component, other than said sodium hexametaphosphate, for increasing retention of said sodium monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 31
Dependent Claim
83 words
A dental cream comprising sodium monofluorophosphate as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate, from about 0.1 to about 1.0 percent by weight of sodium hexametaphosphate and from about 0.3 to about 1.0 percent by weight of dibasic sodium phosphate as the sole component, other than said sodium hexametaphosphate, for increasing retention of said sodium monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 32
Dependent Claim
85 words
A dental cream comprising sodium monofluorophosphate as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate, from about 0.1 to about 1.0 percent by weight of tetrasodium ethylenediamine tetraacetate and from about 0.3 to about 1.0 percent by weight of dibasic sodium phosphate as the sole component, other than said tetrasodium ethylenediamine tetraacetate, for increasing retention of said sodium monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 33
Dependent Claim
85 words
A dental cream comprising sodium monofluorophosphate as a source of soluble fluoride in a therapeutically effective anti-caries concentration, an effective amount of an abrasive consisting of calcium carbonate, from about 0.1 to about 1.0 percent by weight of tetrasodium ethylenediamine tetraacetate and from about 0.3 to about 1.0 percent by weight of dibasic sodium phosphate as the sole component, other than said tetrasodium ethylenediamine tetraacetate, for increasing retention of said sodium monofluorophosphate as a source of soluble fluoride, said dentifrice being devoid of benzyl alcohol.
Claim 34
Dependent Claim
60 words
A dental cream consisting essentially of: ______________________________________
Ingredients % w/w
______________________________________
Anhydrous dibasic sodium phosphate
1.00
Sodium monofluorophosphate
0.81
Glycerin 12.25
Sodium carboxymethylcellulose
0.92
Xanthan gum 0.38
Sodium saccharin 0.23
Methylparaben 0.06
Propylparaben 0.02
Sorbitol solution (70% w/v)
9.00
Potassium nitrate 5.00
Sodium lauryl sulfate 2.10
Colloidal silica 1.00
Calcium carbonate 30.00
Flavoring 1.35
Distilled water, to make
100.00
______________________________________
Claim 35
Dependent Claim
60 words
A dental cream consisting essentially of: ______________________________________
Ingredients % w/w
______________________________________
Anhydrous dibasic sodium phosphate
1.00
Sodium monofluorophosphate
0.81
Glycerin 12.25
Sodium carboxymethylcellulose
0.92
Xanthan gum 0.38
Sodium saccharin 0.23
Methylparaben 0.06
Propylparaben 0.02
Sorbitol solution (70% w/v)
9.00
Potassium nitrate 5.00
Sodium lauryl sulfate 2.10
Colloidal silica 1.00
Calcium carbonate 30.00
Flavoring 1.35
Distilled water, to make
100.00
______________________________________
Claim 36
Dependent Claim
60 words
A dental cream consisting essentially of: ______________________________________
Ingredients % w/w
______________________________________
Anhydrous dibasic sodium phosphate
1.00
Sodium monofluorophosphate
0.82
Glycerin 12.50
Sodium carboxymethylcellulose
0.20
Xanthan gum 0.55
Sodium saccharin 0.20
Methylparaben 0.06
Propylparaben 0.02
Sorbitol solution (70% w/v)
12.50
Colloidal silica 1.70
Calcium carbonate 35.00
Sodium lauryl sulfate 1.50
Alcohol U.S.P. 0.50
Flavoring 1.40
Distilled water, to make
100.00
______________________________________
Claim 37
Dependent Claim
60 words
A dental cream consisting essentially of: ______________________________________
Ingredients % w/w
______________________________________
Anhydrous dibasic sodium phosphate
1.00
Sodium monofluorophosphate
0.82
Glycerin 12.50
Sodium carboxymethylcellulose
0.20
Xanthan gum 0.55
Sodium saccharin 0.20
Methylparaben 0.06
Propylparaben 0.02
Sorbitol solution (70% w/v)
12.50
Colloidal silica 1.70
Calcium carbonate 35.00
Sodium lauryl sulfate 1.50
Alcohol U.S.P. 0.50
Flavoring 1.40
Distilled water, to make
100.00
______________________________________
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |