US3050331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding trailer
Assignee: Individual
•
Filing: 1960-07-19
•
Granted: 1962-08-21
•
Expires: 1980-07-19
Abstract
No abstract record available.
Inventors
- 👤 Carl H Mansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:37
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1917824A
Cited
US1863206A
Cited
US2298619A
Cited
US2483332A
Cited
US2729497A
Cited
US2808287A
Cited
US2795363A
Cited
GB822562A
Cited
US2837778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |