US2539733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor vehicle with tandem conversion attachment
Assignee: Individual
•
Filing: 1949-02-18
•
Granted: 1951-01-30
•
Expires: 1969-02-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Claude E Dorsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:13
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/045; B60; B60G; B60G5/00; B62D21/00; B62D21/14
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) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |