US2940534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power take-off mechanism
Assignee: Individual
•
Filing: 1957-02-11
•
Granted: 1960-06-14
•
Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 Robert C Chattin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:29
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/28; A; A01; A01B; A01B61/00; A01B61/02; A01B61/025; B60K25/00; B60K25/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21713E
Cited
US1694221A
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US1772247A
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US2108078A
Cited
US2558822A
Cited
US2616348A
Cited
US2624416A
Cited
US2712785A
Cited
US2783654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |