Patent US971883A successfully refreshed from Google Patents.
US971883A
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US
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Change-speed mechanism.
Assignee: HARRY B WARREN
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Filing: 1909-01-14
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Granted: 1910-10-04
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Expires: 1929-01-14
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Gant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:51
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19233; Y10T74/19377; Y10T74/19386; Y10T74/19391
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) | 1913-10-03 | 1914-04-04 | 1914-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-10-03 | 1918-04-04 | 1918-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-10-03 | 1922-04-04 | 1922-10-04 | $7700.00 | Window Closed / Lapsed |