US2965181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor differential gear lock-out device
Assignee: MASSEY HARRIS FERGUSON Ltd
•
Filing: 1954-02-03
•
Granted: 1960-12-20
•
Expires: 1974-02-03
Abstract
No abstract record available.
Inventors
- 👤 Senkowski Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:56
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0857; A; A01; A01B; A01B67/00; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US506517A
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US529264A
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US1632417A
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US2137249A
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US2231858A
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US2323859A
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US2507767A
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US2349257A
Cited
US2538143A
Cited
US2368156A
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US2455727A
Cited
US2459870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |