US2574657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible power transmitting mechanism
Assignee: Individual
•
Filing: 1945-10-23
•
Granted: 1951-11-13
•
Expires: 1965-10-23
Abstract
No abstract record available.
Inventors
- 👤 Harold C Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:04
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/18; F16G13/20; B; B66; B66F; B66F13/00; B66F13/005; B66F3/00; B66F3/02; B66F3/06; F16H; F16H19/00; F16H19/02; F16H19/06; F16H19/0636; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19716; Y10T74/19819
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1136934A
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US1418505A
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US1577040A
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US1570014A
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US1624106A
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US1834900A
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GB418690A
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FR778375A
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US2017300A
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US2375461A
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US2131261A
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US2375462A
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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) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |