US1550058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Change-speed gearing
Assignee: Brown Lipe Gear Co
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Filing: 1923-10-23
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Granted: 1925-08-18
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Expires: 1943-10-23
Abstract
No abstract record available.
Inventors
- 👤 George C Carhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:23
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/08; F16H63/16; F16H63/18; F16H3/00; F16H3/02; F16H3/20; F16H3/22; F16H3/24; F16H61/00; F16H61/02; F16H61/0293; F16H2708/00; F16H2708/10; F16H2708/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19293; Y10T74/19298; Y10T74/19307; Y10T74/19312; 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) | 1928-08-17 | 1929-02-16 | 1929-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-17 | 1933-02-16 | 1933-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-17 | 1937-02-16 | 1937-08-18 | $7700.00 | Window Closed / Lapsed |