Patent US1813875A successfully refreshed from Google Patents.
US1813875A
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Gear
Assignee: GEAR PROC Inc
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Filing: 1931-03-19
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Granted: 1931-07-07
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Expires: 1951-03-19
Abstract
No abstract record available.
Inventors
- 👤 Roy B Fehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:05
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/08; B; B23; B23F; B23F19/00; B23F19/02; B23F19/04; F16H55/088; F16H2055/0893; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/49471; Y10T409/00; Y10T409/10; Y10T409/101113; Y10T409/101272; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19963; Y10T74/19972; Y10T74/19986
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) | 1934-07-06 | 1935-01-05 | 1935-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-07-06 | 1939-01-05 | 1939-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-07-06 | 1943-01-05 | 1943-07-07 | $7700.00 | Window Closed / Lapsed |