Patent US3476827A successfully refreshed from Google Patents.
Patent US2052650A successfully refreshed from Google Patents.
US2052650A
Expired / Lapsed
US
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Clutch mechanism
Assignee: Twin Disc Inc
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Filing: 1934-01-18
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Granted: 1936-09-01
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Expires: 1954-01-18
Abstract
No abstract record available.
Inventors
- 👤 William J Pearmain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:13
CPC Classifications
F; F16; F16D; F16D21/00; F16D21/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19237; Y10T74/19377; Y10T74/19414; Y10T74/19484; Y10T74/19488
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) | 1939-09-01 | 1940-03-02 | 1940-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-01 | 1944-03-02 | 1944-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-01 | 1948-03-02 | 1948-09-01 | $7700.00 | Window Closed / Lapsed |