Patent US2821868A successfully refreshed from Google Patents.
US2821868A
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US
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Power transmission assembly
Assignee: Individual
•
Filing: 1953-06-22
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Granted: 1958-02-04
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Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:21
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/34; F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/091; F16H7/00; F16H7/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19167; Y10T74/19219; Y10T74/19377; Y10T74/19386; Y10T74/194
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US885505A
Cited
US1393439A
Cited
US1623214A
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US2078034A
Cited
US2306545A
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US2589844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |