US3473901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel compositions
Assignee: Rohm and Haas Co
•
Filing: 1967-05-24
•
Granted: 1969-10-21
•
Expires: 1987-05-24
Abstract
No abstract record available.
Inventors
- 👤 Peter L Debenneville
- 👤 Lawrence J Exner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:42
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/10; C07D233/20; C07D233/22; C07D235/04; C07D235/06; C07D235/08; C07D235/18; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/236; C10L1/2368; C10M; C10M1/00; C10M1/08; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2221/00; C10M2221/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3143513A
Cited
US3397146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |