USRE29473E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical composition
Assignee: DHP Corp
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Filing: 1976-11-22
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Granted: 1977-11-15
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Expires: 1996-11-22
Abstract
Abstract A chemical composition comprising a mixture of alkali and/or alkaline earth metal hypochlorites and, as a stabilizing and/or reinforcing agent, alkali and/or alkaline earth metal pyrosulfates.
Inventors
- 👤 Walter P. Fitzgerald, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:24
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D3/395; C11D3/3953; D; D21; D21C; D21C9/00; D21C9/10; D21C9/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
112 words
A chemical composition consisting essentially of a mixture of (a) a member selected from the group consisting of an alkali metal pyrosulfate, an alkaline earth metal pyrosulfate or mixtures thereof.Iadd., .Iaddend..[.and.]. (b) a member selected from the group consisting of an alkali metal hypochlorite, an alkaline earth metal hypochlorite or mixtures thereof .Iadd.and (c) an agent rendering the pH of the chemical composition alkaline.Iaddend., component (a) being present in from about 1 to about 99 parts by weight.Iadd., .Iaddend..[.and.]. component (b) being present in from about 99 to 1 parts by weight.Iadd., and component (c) being present in an amount sufficient to render the pH of the composition in excess of 8.Iaddend..
Claim 2
Dependent Claim
112 words
A chemical composition consisting essentially of a mixture of (a) a member selected from the group consisting of an alkali metal pyrosulfate, an alkaline earth metal pyrosulfate or mixtures thereof.Iadd., .Iaddend..[.and.]. (b) a member selected from the group consisting of an alkali metal hypochlorite, an alkaline earth metal hypochlorite or mixtures thereof .Iadd.and (c) an agent rendering the pH of the chemical composition alkaline.Iaddend., component (a) being present in from about 1 to about 99 parts by weight.Iadd., .Iaddend..[.and.]. component (b) being present in from about 99 to 1 parts by weight.Iadd., and component (c) being present in an amount sufficient to render the pH of the composition in excess of 8.Iaddend..
Claim 3
Dependent Claim
35 words
The chemical composition according to claim 1 wherein component (b) is an alkali or alkaline earth metal hypochlorite and component (a) is present in an amount of from about 0.5 to 50 percent by weight.
Claim 4
Dependent Claim
18 words
The chemical composition according to claim 1 wherein component (b) is an alkali or alkaline earth metal hypochlorite.
Claim 5
Dependent Claim
10 words
An aqueous medium containing the composition according to claim 2.
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) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |