US3446743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straight-chain alkyl aryl sulfonate detergent compositions
Assignee: Chevron USA Inc
•
Filing: 1965-04-01
•
Granted: 1969-05-27
•
Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 David M Marquis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:40
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2082; C11D1/00; C11D1/02; C11D1/12; C11D1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2298650A
Cited
US2486562A
Cited
US2709687A
Cited
US2773833A
Cited
US2938050A
Cited
US2970163A
Cited
US3082154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |