US3368974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrenyl compounds and use thereof
Assignee: Universal Oil Products Co
•
Filing: 1967-05-16
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Granted: 1968-02-13
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Expires: 1987-05-16
Abstract
No abstract record available.
Inventors
- 👤 Allen K Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/29; C09; C09K; C09K15/00; C09K15/04; C09K15/16; C10; C10M; C10M3/00; C07; C07C; C07C2603/00; C07C2603/02; C07C2603/40; C07C2603/42; C07C2603/50; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/043; C10M2201/10; C10M2201/102; C10M2201/105; C10M2201/14; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/283; C10M2207/30; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/068; C10M2215/08; C10M2215/082; C10M2215/10; C10M2215/102; C10M2215/12; C10M2215/122; C10M2215/14; C10M2215/22; C10M2215/225; C10M2215/227; C10M2215/24; C10M2215/28; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2227/00; C10M2227/02; C10M2227/04; C10M2229/00; C10M2229/04; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/02; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |