Patent US2135580A successfully refreshed from Google Patents.
Patent US2456692A successfully refreshed from Google Patents.
US2456692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil composition
Assignee: Union Oil Company of California
•
Filing: 1943-08-16
•
Granted: 1948-12-21
•
Expires: 1963-08-16
Abstract
No abstract record available.
Inventors
- 👤 Farkas Adalbert
- 👤 Jr Arthur F Stribley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:04
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1893018A
Cited
US1939951A
Cited
US2285853A
Cited
US2285854A
Cited
US2175509A
Cited
US2242260A
Cited
US2228658A
Cited
US2344988A
Cited
US2226552A
Cited
US2252985A
Cited
US2252984A
Cited
US2310175A
Cited
US2261047A
Cited
US2369632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |