US2307307A
Expired / Lapsed
US
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Extreme pressure lubricant
Assignee: Standard Oil Co
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Filing: 1938-09-12
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Granted: 1943-01-05
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Expires: 1958-09-12
Abstract
No abstract record available.
Inventors
- 👤 Bernard H Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:25
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/06; C10M2219/062; C10N; C10N2040/00; C10N2040/02; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
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) | 1946-01-04 | 1946-07-06 | 1947-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-04 | 1950-07-06 | 1951-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-04 | 1954-07-06 | 1955-01-05 | $7700.00 | Window Closed / Lapsed |