US4474749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticariogenetic chewing gum
Assignee: Individual
•
Filing: 1983-04-07
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Granted: 1984-10-02
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Expires: 2003-04-07
Abstract
Abstract Anticariogenetic chewing gum containing a known chewing gum base, sodium fluoride, calcium citrate, tricalcium-bis-orthophosphate, and additives as desired, and as an essential ingredient, a prolamin (Zein G-200) which is applied to the sodium fluoride during processing of the gum.
Inventors
- 👤 Winfried Kruppa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:34
CPC Classifications
A; A23; A23G; A23G4/00; A23G4/06; A23G4/064; A23G4/14; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/64; A61K8/645; A61Q; A61Q11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
28 words
In an anticariogenic chewing gum comprising a chewing gum base, sodium fluoride, calcium citrate, tricalcium-bis-orthophosphate and additives, the improvement wherein said sodium fluoride is microcoated by zein G-200.
Claim 2
Dependent Claim
28 words
In an anticariogenic chewing gum comprising a chewing gum base, sodium fluoride, calcium citrate, tricalcium-bis-orthophosphate and additives, the improvement wherein said sodium fluoride is microcoated by zein G-200.
Claim 3
Dependent Claim
120 words
An anticariogenic chewing gum comprising a chewing gum base, sodium fluoride, calcium citrate, tricalcium-bis-orthophosphate, additives, and zein G-200, produced by the process comprising first mixing calcium citrate and tri-calcium-bis-orthophosphate with said base to form a base mixture, enveloping the sodium fluoride with zein G-200 by spraying said zein G-200 on said sodium floride to form a microcoating thereon subjecting said thus coated sodium fluoride to an acid aqueous solution and maintaining it therein for a time sufficient for the acid in said solution to deposit on the outermost layer of said zein, then processing the thus-treated sodium fluoride with an emulsifying agent to form an emulsion, and lastly, incorporating said emulsion into the base mixture by means of a homogenizer.
Claim 4
Dependent Claim
120 words
An anticariogenic chewing gum comprising a chewing gum base, sodium fluoride, calcium citrate, tricalcium-bis-orthophosphate, additives, and zein G-200, produced by the process comprising first mixing calcium citrate and tri-calcium-bis-orthophosphate with said base to form a base mixture, enveloping the sodium fluoride with zein G-200 by spraying said zein G-200 on said sodium floride to form a microcoating thereon subjecting said thus coated sodium fluoride to an acid aqueous solution and maintaining it therein for a time sufficient for the acid in said solution to deposit on the outermost layer of said zein, then processing the thus-treated sodium fluoride with an emulsifying agent to form an emulsion, and lastly, incorporating said emulsion into the base mixture by means of a homogenizer.
Claim 5
Dependent Claim
24 words
Anticariogenic gum of claim 2 wherein said sodium fluoride is enveloped in from about 0.0004 to 0.001 per cent by weight of zein G-200.
Claim 6
Dependent Claim
67 words
Anticariogenic chewing gum of claim 2 or claim 3, wherein the sodium fluoride microcoated by zein G-200 is subjected to an aqueous solution adjusted with citric acid to pH from about 1.5 to 1.8 and maintained therein at a temperature of from about 25° C. to 30° C. for a time sufficient for the acid in said solution to deposit on the outermost layer of said zein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |