US2721758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible tail-gate ramp for trucks
Assignee: Individual
•
Filing: 1952-10-18
•
Granted: 1955-10-25
•
Expires: 1972-10-18
Abstract
No abstract record available.
Inventors
- 👤 Allen Louis Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:52
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/43; B60P1/435; B60P3/00; B60P3/06; B60P3/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US887167A
Cited
FR571803A
Cited
FR596240A
Cited
US1655686A
Cited
US1949172A
Cited
US2215631A
Cited
US2432259A
Cited
US2587265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |