US3741915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonate detergents
Assignee: Gulf Research and Development Co
•
Filing: 1971-05-14
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Granted: 1973-06-26
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Expires: 1991-05-14
Abstract
Abstract AN AQUEOUS COMPRISITION OF MATTER CONTAINING SODIUM ALKENE SULFONATES OR SODIUM HYDROXY ALKANE SULFONATES AND AN ALKALI METAL SULFATE IN AN AMOUNT SUFFICIENT TO INCREASE THE VISCOSITY THEREOF.
Inventors
- 👤 S Paviak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:01
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/23; A61K8/30; A61K8/46; A61K8/466; A61Q; A61Q5/00; A61Q5/02; C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D3/00; C11D3/02; C11D3/04; C11D3/046
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |