Patent US1993236A successfully refreshed from Google Patents.
US1993236A
Expired / Lapsed
US
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Power take-off
Assignee: W C NORRIS
•
Filing: 1933-12-07
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Granted: 1935-03-05
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Expires: 1953-12-07
Abstract
No abstract record available.
Inventors
- 👤 William R Barney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:38
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/02; F04B9/04; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176; Y10T74/18182; Y10T74/18184; Y10T74/21; Y10T74/2142; Y10T74/2159
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) | 1938-03-04 | 1938-09-03 | 1939-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-04 | 1942-09-03 | 1943-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-04 | 1946-09-03 | 1947-03-05 | $7700.00 | Window Closed / Lapsed |