US3501031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carriage mechanism for a load handling device
Assignee: US TRUCK CRANES Inc A PA CORP
•
Filing: 1969-01-16
•
Granted: 1970-03-17
•
Expires: 1989-01-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Whitfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:57
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/54; B60P1/5438; B60P1/5457; B60P1/5466
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US891882A
Cited
US2156424A
Cited
US2709968A
Cited
US2857062A
Cited
US2913997A
Cited
FR1231726A
Cited
US3194178A
Cited
US3301416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |