US3606441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist hook device
Assignee: Individual
•
Filing: 1969-11-12
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Granted: 1971-09-20
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Expires: 1989-11-12
Abstract
Abstract THE INVENTION COMPRISES A J-SHAPED HOIST HOOK. THE HOOK HAS A CYLINDER MOUNTED IN THE APEX OF THE HOOK, WITH THE HOOK BEING ROTATABLE RELATIVE TO CYLINDER. THE CYLINDER HAS A RADIAL CUT OUT TO RECEIVE THE OUTER EDGE OF A CYLINDRICAL PIPE, A CURVED PLATE IS FIXED TO THE CYLINDER ALONG AN EDGE OF THE RADIAL CUT OUT FOR ENGAGING AND SUPPORTING THE UNDERSIDE OF THE EDGE OF THE PIPE. THE HOOK CAN ROTATE RELATIVE TO THE CYLINDER AND PIPE TO ADJUST TO DIFFERENT ANGLES WHEN LIFTING THE PIPE.
Inventors
- 👤 Leland M Ridgely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:40
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/12; B66C1/14; Y; Y10; Y10S; Y10S294/00; Y10S294/901
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |