Patent US3178282A successfully refreshed from Google Patents.
Patent US3092586A successfully refreshed from Google Patents.
US3092586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants
Assignee: Ethyl Corp
•
Filing: 1958-11-19
•
Granted: 1963-06-04
•
Expires: 1978-11-19
Abstract
No abstract record available.
Inventors
- 👤 Fred J Dykstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:37
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062; C10N; C10N2010/00; C10N2010/02; C10N2010/06; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
LIQID HYDROCARBON CRANKCASE LUBRICATING OIL NORMALLY SUBJECT TO OXIDATIVE DETERIORATION TO WHICH HAS BEEN ADDED FROM ABOUT 0.001 TO ABOUT 1.0 WEIGHT PERCENT OF BORON AS A LIQUID TRI(ALKYLENE)BIBORATE HAVING THE FORMULA
Claim 2
Dependent Claim
32 words
LIQID HYDROCARBON CRANKCASE LUBRICATING OIL NORMALLY SUBJECT TO OXIDATIVE DETERIORATION TO WHICH HAS BEEN ADDED FROM ABOUT 0.001 TO ABOUT 1.0 WEIGHT PERCENT OF BORON AS A LIQUID TRI(ALKYLENE)BIBORATE HAVING THE FORMULA
References Cited (Backward Citations)
US2526506A
Cited
US2710252A
Cited
US2795548A
Cited
US2741548A
Cited
US2821539A
Cited
US2866811A
Cited
US2894020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |