US2911845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear reduction unit
Assignee: Individual
•
Filing: 1958-01-29
•
Granted: 1959-11-10
•
Expires: 1978-01-29
Abstract
No abstract record available.
Inventors
- 👤 Henry W North
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:15
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/20; F16H1/22; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19628; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2131531A
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US2167065A
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US2327777A
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US2389557A
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US2654267A
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US2712761A
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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) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |