US2931776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denture cleanser composition
Assignee: Reckitt Benckiser Ltd
•
Filing: 1956-08-14
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Granted: 1960-04-05
•
Expires: 1976-08-14
Abstract
No abstract record available.
Inventors
- 👤 Howard Richard Skipworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:18
CPC Classifications
A; A61; A61Q; A61Q11/00; A61Q11/02; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/22; C; C11; C11D; C11D3/00; C11D3/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A TABLET FOR THE PREPARATION OF AN AQUEOUS CLEANSING SOLUTION, SAID TABLET CONSISTING ESSENTIALLY OF A MIXTURE OF AN INORGANIC PERSALT WHICH SLOWLY RELEASES ACTIVE OXYGEN IN AQUEOUS SOLUTION SELECTED FROM THE GROUP CONSISTING OF A PERCARBORATE AND A HYDRATED PERBORATE AND AT LEAST ONE ALKALINE ALKALI METAL INORGANIC DETERGENT SALT WITH FROM ABOUT 4 TO ABOUT 30% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE ANHYDROUS FORMS OF SODIUM, POTASSIUM, AMMONIUM, CALCIUM AND MAGNESIUM PERBORATES WHICH ON ADDITION TO WATER EFFERVESCE AND RAPIDLY RELEASE GASEOUS OXYGEN.
Claim 2
Dependent Claim
91 words
A TABLET FOR THE PREPARATION OF AN AQUEOUS CLEANSING SOLUTION, SAID TABLET CONSISTING ESSENTIALLY OF A MIXTURE OF AN INORGANIC PERSALT WHICH SLOWLY RELEASES ACTIVE OXYGEN IN AQUEOUS SOLUTION SELECTED FROM THE GROUP CONSISTING OF A PERCARBORATE AND A HYDRATED PERBORATE AND AT LEAST ONE ALKALINE ALKALI METAL INORGANIC DETERGENT SALT WITH FROM ABOUT 4 TO ABOUT 30% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE ANHYDROUS FORMS OF SODIUM, POTASSIUM, AMMONIUM, CALCIUM AND MAGNESIUM PERBORATES WHICH ON ADDITION TO WATER EFFERVESCE AND RAPIDLY RELEASE GASEOUS OXYGEN.
References Cited (Backward Citations)
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Cited
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US1677283A
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US2152520A
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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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |