US3497333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor fuel multipurpose agents
Assignee: Gulf Research and Development Co
•
Filing: 1966-04-25
•
Granted: 1970-02-24
•
Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Helen I Thayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:56
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10L1/26; C10L1/2633; C10L1/2658
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2447615A
Cited
US2633146A
Cited
US2773492A
Cited
US3014793A
Cited
US3131175A
Cited
US3231348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |