US2930490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic derrick
Assignee: Highway Trailer Co
•
Filing: 1957-11-27
•
Granted: 1960-03-29
•
Expires: 1977-11-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry C Stricker
- 👤 James W Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:05
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C2700/00; B66C2700/06; B66C2700/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2611580A
Cited
US2711803A
Cited
US2753055A
Cited
US2687809A
Cited
US2687810A
Cited
US2687811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |