US2551725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor and implement mounting
Assignee: Individual
•
Filing: 1948-05-13
•
Granted: 1951-05-08
•
Expires: 1968-05-13
Abstract
No abstract record available.
Inventors
- 👤 Christiansen Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:51
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/04; A; A01; A01B; A01B69/00; A01B69/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1396785A
Cited
US1917962A
Cited
US1868474A
Cited
US1863473A
Cited
US2074685A
Cited
US2175965A
Cited
US2178505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |