US2101632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of lubricating bearing surfaces
Assignee: Gulf Research and Development Co
•
Filing: 1936-11-18
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Granted: 1937-12-07
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Expires: 1956-11-18
Abstract
No abstract record available.
Inventors
- 👤 Weinrich William Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:24
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20
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) | 1940-12-06 | 1941-06-07 | 1941-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-12-06 | 1945-06-07 | 1945-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-12-06 | 1949-06-07 | 1949-12-07 | $7700.00 | Window Closed / Lapsed |