US856967A
Expired / Lapsed
US
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Variable-speed gear.
Assignee: RETTA PIERCE DAVENPORT
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Filing: 1906-05-28
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Granted: 1907-06-11
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Expires: 1926-05-28
Abstract
No abstract record available.
Inventors
- 👤 Sherman T Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:11
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/60
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) | 1910-06-10 | 1910-12-10 | 1911-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-06-10 | 1914-12-10 | 1915-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-06-10 | 1918-12-10 | 1919-06-11 | $7700.00 | Window Closed / Lapsed |