US977449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed mechanism.
Assignee: CHARLES R HUNT
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Filing: 1909-07-08
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Granted: 1910-12-06
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Expires: 1929-07-08
Abstract
No abstract record available.
Inventors
- 👤 George D Hayden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:06
CPC Classifications
F; F16; F16H; F16H29/00; F16H29/02; F16H29/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/151; Y10T74/1526; Y10T74/1529; Y10T74/1531; Y10T74/21; Y10T74/2142; Y10T74/2143; Y10T74/2173; Y10T74/2179
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) | 1913-12-05 | 1914-06-06 | 1914-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-12-05 | 1918-06-06 | 1918-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-12-05 | 1922-06-06 | 1922-12-06 | $7700.00 | Window Closed / Lapsed |