US3813228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil composition
Assignee: Universal Oil Products Co
•
Filing: 1972-07-17
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Granted: 1974-05-28
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Expires: 1992-07-17
Abstract
Abstract LUBRIATING OIL FOR TWO-CYCLE OR ROTARY ENGINE WHICH EMPLOY A LUBRICATING OIL-FUEL MIXTURE, CONTAINING THE POLYMERIC REACTION PRODUCT OF AN ALIPHATIC AMINE AND AN EPIHALOHYDRIN COMPOUND.
Inventors
- 👤 E Geiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:35
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10M; C10M1/00; C10M1/08; C10L1/16; C10L1/1616; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824; C10L1/22; C10L1/221; C10M2217/00; C10M2217/02; C10M2217/04; C10N; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/26; C10N2040/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |