US820789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible toothed element.
Assignee: Individual
•
Filing: 1905-10-30
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Granted: 1906-05-15
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Expires: 1925-10-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick Hutchins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:58
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/084; F16; F16H; F16H55/00; F16H55/02; F16H55/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/4948; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19907; Y10T74/19949; Y10T74/19963; Y10T74/19967
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) | 1909-05-14 | 1909-11-13 | 1910-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-05-14 | 1913-11-13 | 1914-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-05-14 | 1917-11-13 | 1918-05-15 | $7700.00 | Window Closed / Lapsed |