US2537745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track and supporting mechanism for crawler type tractors
Assignee: Oliver Corp Japan
•
Filing: 1944-08-23
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Granted: 1951-01-09
•
Expires: 1964-08-23
Abstract
No abstract record available.
Inventors
- 👤 Lee C Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:00
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320882A
Cited
GB134190A
Cited
US1397314A
Cited
US1487340A
Cited
US1542149A
Cited
US2050845A
Cited
US2067400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |