US2989470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil composition containing certain 2:1beta-glycol borate compounds
Assignee: Standard Oil Co
•
Filing: 1958-12-30
•
Granted: 1961-06-20
•
Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Darling
- 👤 Liao Chien-Wei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:12
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10; C10M; C10M1/00; C10M1/08; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062; C10N; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
PETROLEUM LUBRICATING OIL HAVING DISSOLVED THEREIN A MOISTURE-STABLE ORGANIC BORON COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
14 words
PETROLEUM LUBRICATING OIL HAVING DISSOLVED THEREIN A MOISTURE-STABLE ORGANIC BORON COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2526506A
Cited
GB722537A
Cited
US2839564A
Cited
US2710252A
Cited
US2795548A
Cited
US2741548A
Cited
US2866811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |