Patent US3738935A successfully refreshed from Google Patents.
US3738935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenated olefin sulfonate-soap combination toilet bars containingalkanolamines
Assignee: Chevron USA Inc
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Filing: 1971-05-27
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Granted: 1973-06-12
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Expires: 1991-05-27
Abstract
Abstract THE INCLUSION OF A MINOR PORTION OF TRIALKANOLAMINES IN COMBINATION WITH SODIUM HYDDROGENATED OLEFIN SULFONATE DDETERGENT AND SOAP BARS WHICH CONTAIN MORE THAN 5% BY WEIGHT OF INORGANIC SALT PREVENTS BLOTCHING OF THE BAR SURFACES.
Inventors
- 👤 Lok Woo Gar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:20
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/30; C11D10/00; C11D10/04; C11D10/042; C11D17/00; C11D17/0047; C11D17/006; C11D9/00; C11D9/04; C11D9/22; C11D9/30; C11D1/00; C11D1/02; C11D1/12; C11D1/14
Claims Analysis
Total Claims: 0
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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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |