Patent US2280450A successfully refreshed from Google Patents.
US2280450A
Expired / Lapsed
US
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Lubricant
Assignee: Atlantic Richfield Co
•
Filing: 1940-02-20
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Granted: 1942-04-21
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Expires: 1960-02-20
Abstract
No abstract record available.
Inventors
- 👤 Reuter Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:33
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C10M137/10; C10M137/105; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/40; C10M2207/404; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/047; C10N; C10N2040/00; C10N2040/02; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10
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) | 1945-04-20 | 1945-10-20 | 1946-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-04-20 | 1949-10-20 | 1950-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-04-20 | 1953-10-20 | 1954-04-21 | $7700.00 | Window Closed / Lapsed |