US3595798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleansing compositions
Assignee: Lever Brothers Co
•
Filing: 1967-12-18
•
Granted: 1971-07-27
•
Expires: 1987-12-18
Abstract
Abstract THIS INVENTION CONCERNS A SOLID DENTURE CLEANSER COMPOSITION WHICH CONTAINS A PEROXYGEN COMPOUND AND THE DYE ERYTHROSINE. THE COMPOSITION ALSO CONTAINS AN AMINO CARBOXYLIC ACID CHELATING AGENT WHICH ACTS TO CONTROL THE RATE AT WHICH THE COLOUR DUE TO THE ERYTHROSINE OF AN AQUEOUS SOLUTION OF THE COMPOSITION FADES.
Inventors
- 👤 Tom Smith
- 👤 John Stewart Lodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:25
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/22; A61K8/30; A61K8/40; A61K8/44; A61K8/49; A61K8/4973; A61K8/498; A61Q; A61Q11/00; A61Q11/02; C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/33; C11D3/39; C11D3/3902; C11D3/3937; C11D3/394; C11D3/40; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43; A61K2800/51
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |