US3092412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grab hook
Assignee: Individual
•
Filing: 1961-07-17
•
Granted: 1963-06-04
•
Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 Norman B Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:57
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/48; B63C11/50; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3484; Y10T24/3485; Y10T24/39; Y10T24/3996
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
IN A FOLDABLE GRAB HOOK, A TUBULAR BODY, A PLURALITY OF FLUKES, EACH HAVING A CURVILINEAR HOOK PORTION PROJECTING RADIALLY OF THE LOWER END OF THE TUBULAR BODY AND EACH HAVING A SHANK PORTION EXTENDING LOOSELY INTO THE TUBULAR BODY, A WEDGE NUT HAVING A DOWNWARDLY DIVERGENT CAMMING SURFACE LOCATED AXIALLY OF THE TUBULAR BODY AND IN EXPANDING ENGAGEMENT WITH THE CURVILINEAR HOOK PORTIONS OF THE SEVERAL FLUKES SUBSTANTIALLY IN THE ZONE OF THEIR CONVERGENCE, A ROD EXTENDED AXIALLY OF THE TUBULAR BODY, AND MEANS ON SAID ROD ENGAGING THE TUBULAR BODY, THE WEDGE NUT THREADEDLY ENGAGING THE ROD TO EXPAND THE FLUKES OUTWARDLY AND RETAIN THE FLUKES IN RELATION TO THE TUBULAR BODY, AND THE WEDGE NUT SELECTIVELY RELEASING THE FLUKES UPON THREADED ADJUSTMENT ON THE ROD TO PERMIT MOVEMENT OF THE HOOK PORTIONS INTO LATERAL ADJACENCE INCIDENT TO FOLDING.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |