Patent US2891581A successfully refreshed from Google Patents.
US2665593A
Expired / Lapsed
US
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Power transmitting mechanism
Assignee: Rockwell Spring and Axle Co
•
Filing: 1943-09-03
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Granted: 1954-01-12
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Expires: 1963-09-03
Abstract
No abstract record available.
Inventors
- 👤 Ivor H Williams
- 👤 Ralph K Super
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:49
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/30; F16H63/3023; B; B60; B60W; B60W30/00; B60W30/18; B60W30/1819; B60K; B60K2702/00; B60K2702/08; B60K2702/18; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18216; Y10T74/18224; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1898190A
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US2121157A
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US2141953A
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US2277198A
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US2373259A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |