US2090397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic clutch mechanism
Assignee: AUTOMATIC DRIVE AND TRANSMISSI
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Filing: 1933-07-25
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Granted: 1937-08-17
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Expires: 1953-07-25
Abstract
No abstract record available.
Inventors
- 👤 William E Haupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:47
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/04; F16D43/06; F16D43/08; F16D43/10
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) | 1940-08-16 | 1941-02-15 | 1941-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-16 | 1945-02-15 | 1945-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-16 | 1949-02-15 | 1949-08-17 | $7700.00 | Window Closed / Lapsed |