US2900210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground traction unit
Assignee: Individual
•
Filing: 1958-08-11
•
Granted: 1959-08-18
•
Expires: 1978-08-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:50
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/112; B62D55/1125; B62D49/00; B62D49/06; B62D49/0621
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |