US2869659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooling for tractor steering mechanism
Assignee: Caterpillar Inc
•
Filing: 1955-04-04
•
Granted: 1959-01-20
•
Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Roy E Mayo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:40
CPC Classifications
B; B62; B62D; B62D11/00; B62D11/02; B62D11/06; B62D11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1303003A
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US872607A
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US2198792A
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US2416128A
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US2391002A
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CH267881A
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US2551528A
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US2667954A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |