US2872992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive mechanism for trailer
Assignee: Doosan Bobcat North America Inc
•
Filing: 1955-01-27
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Granted: 1959-02-10
•
Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Walter E Schirmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:37
CPC Classifications
B; B62; B62D; B62D59/00; B62D59/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1390986A
Cited
US1738212A
Cited
US1926935A
Cited
US2693120A
Cited
US2659246A
Cited
US2711222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |