Patent US2500393A successfully refreshed from Google Patents.
US2500393A
Expired / Lapsed
US
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Power-transmitting device
Assignee: RTX Corp
•
Filing: 1944-04-14
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Granted: 1950-03-14
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Expires: 1964-04-14
Abstract
No abstract record available.
Inventors
- 👤 George L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:44
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/12; F16H; F16H1/00; F16H1/28; F16H1/2809; F16H1/2818; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1923368A
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US1586309A
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US1527335A
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US1946956A
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US1864256A
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US2027666A
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US2247839A
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US2233498A
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US2255717A
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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) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |