US1664303A
Expired / Lapsed
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Gear-ratio-changing mechanism
Assignee: Individual
•
Filing: 1927-01-21
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Granted: 1928-03-27
•
Expires: 1947-01-21
Abstract
No abstract record available.
Inventors
- 👤 Fred W Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:18
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0293; F16H2710/00; F16H2710/24; F16H2710/26; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/19274; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19451; Y10T74/1946
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) | 1931-03-27 | 1931-09-26 | 1932-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-27 | 1935-09-26 | 1936-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-27 | 1939-09-26 | 1940-03-27 | $7700.00 | Window Closed / Lapsed |