US1906790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing clutch mechanism
Assignee: Oil Well Supply Co
•
Filing: 1928-08-16
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Granted: 1933-05-02
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Expires: 1948-08-16
Abstract
No abstract record available.
Inventors
- 👤 Edgar E Greve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
F; F16; F16D; F16D21/00; F16D21/02; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/14; F16H3/145; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19484; Y10T74/19498
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) | 1936-05-01 | 1936-10-31 | 1937-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-01 | 1940-10-31 | 1941-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-01 | 1944-10-31 | 1945-05-02 | $7700.00 | Window Closed / Lapsed |