US2935218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle with vertically adjustable cargo platform
Assignee: Keystone Engineering Co
•
Filing: 1958-03-03
•
Granted: 1960-05-03
•
Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Conrad M Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:06
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/02; B66; B66F; B66F7/00; B66F7/06; B66F7/0625; B66F7/065; B66F7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1817418A
Cited
US1943325A
Cited
US2501001A
Cited
US2643515A
Cited
US2764869A
Cited
US2797833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |