US3765651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist
Assignee: Individual
•
Filing: 1971-08-02
•
Granted: 1973-10-16
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Expires: 1991-08-02
Abstract
Abstract A PORTABLE COMPACT HOIST CONSTRUCTED OF LIGHTWEIGHT METALS AND HIGH STRENGTH FABRICS. THE INVENTION HAS A MAXIMUM LIFTING CAPACITY AND A MINIMUM SIZE AND WEIGHT. A SELF-LOCKING GEAR ARRANGEMENT THAT CAN BE OVERCOME BY MOMENTUM OF AN OPERATING, HANDLE INSURES THAT A FLAT TAPE USED FOR THE HOIST CABLE CAN BE EFFICIENTLY WOUND ONTO OR OFF OF THE REEL AND THAT THE TAPE CAN ALSO BE RAPIDLY PULLED FROM THE REAL.
Inventors
- 👤 H Lifferth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:12
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/10; B; B66; B66D; B66D1/00; B66D1/02; B66D1/04; F16H1/00; F16H1/02; F16H1/24; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19884
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |