US2521391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitch
Assignee: Individual
•
Filing: 1947-05-22
•
Granted: 1950-09-05
•
Expires: 1967-05-22
Abstract
No abstract record available.
Inventors
- 👤 Adolf J Meents
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:19
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/01; B60D1/02; B60D1/025; Y; Y10; Y10T; Y10T403/00; Y10T403/59; Y10T403/591; Y10T403/595; Y10T403/60; Y10T403/602; Y10T403/604
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1333384A
Cited
US1543304A
Cited
US1680236A
Cited
US1879052A
Cited
US2062788A
Cited
US2133065A
Cited
US2170983A
Cited
US2221492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |