Patent US2729981A successfully refreshed from Google Patents.
US2729981A
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US
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Reversible power transmission mechanism
Assignee: Fairbanks Morse and Co
•
Filing: 1951-08-02
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Granted: 1956-01-10
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Expires: 1971-08-02
Abstract
No abstract record available.
Inventors
- 👤 Hugo F Budzien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:40
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/14; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19386; Y10T74/19409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2221387A
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US2303168A
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US2443313A
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US2535904A
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US2536897A
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US2549078A
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US2536737A
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US2600022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |