Patent US4513923A successfully refreshed from Google Patents.
Patent US2641139A successfully refreshed from Google Patents.
US2641139A
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Speed reducer device
Assignee: Individual
•
Filing: 1949-11-09
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Granted: 1953-06-09
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Expires: 1969-11-09
Abstract
No abstract record available.
Inventors
- 👤 Lowell E Beisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:15
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/08; H02K7/081; F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/16; H02K7/10; H02K7/116; H02K7/1163; H02K7/1166; F16H57/00; F16H57/02; F16H57/025; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684; Y10T74/19698; Y10T74/19828; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1781083A
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US1923879A
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US2503027A
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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) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |