US3531440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ester modified polymers as fuel dispersants
Assignee: Chevron USA Inc
•
Filing: 1969-02-10
•
Granted: 1970-09-29
•
Expires: 1989-02-10
Abstract
No abstract record available.
Inventors
- 👤 Enver Mehmedbasich
- 👤 Eddie G Lindstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:17
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C08; C08F; C08F8/00; C08F8/14; C08F2810/00; C08F2810/20; C08F2810/30; C10L1/195; C10L1/196; C10L1/1966; C10L1/198
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3010810A
Cited
US3197409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |