US2269290A
Expired / Lapsed
US
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Speed-change mechanism
Assignee: Giddings and Lewis LLC
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Filing: 1940-02-26
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Granted: 1942-01-06
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Expires: 1960-02-26
Abstract
No abstract record available.
Inventors
- 👤 Garner H Schurger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:14
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/12; B23Q5/14; B23Q5/142; B23Q2705/00; B23Q2705/02; B23Q2705/06; B23Q2705/062; B23Q2705/064; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/20; Y10T74/20012; Y10T74/20018
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-01-05 | 1945-07-07 | 1946-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-05 | 1949-07-07 | 1950-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-05 | 1953-07-07 | 1954-01-06 | $7700.00 | Window Closed / Lapsed |