US3043445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boom controlling device for power cranes
Assignee: Individual
•
Filing: 1961-01-23
•
Granted: 1962-07-10
•
Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 William C Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:34
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C23/62; B66C23/72; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357; B66C2700/0364; B66C2700/0371; B66C2700/0392; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20396; Y10T74/20468; Y10T74/21; Y10T74/2133; Y10T74/2136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1153034A
Cited
US1470321A
Cited
US1469579A
Cited
US2173616A
Cited
US2445116A
Cited
US2697948A
Cited
US2501198A
Cited
US2694280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |