US3011652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable mast and boom for hoists
Assignee: Individual
•
Filing: 1957-05-21
•
Granted: 1961-12-05
•
Expires: 1977-05-21
Abstract
No abstract record available.
Inventors
- 👤 Charles T Falk
- 👤 Joseph M Falk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:27
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/72; B66C23/78; B66C23/80; B66C13/00; B66C13/18; B66C2700/00; B66C2700/06; B66C2700/062; B66C2700/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2101837A
Cited
US2359961A
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US2645360A
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US2672990A
Cited
US2746612A
Cited
US2796996A
Cited
US2755943A
Cited
US2909194A
Cited
US2913005A
Cited
US2934042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |