Patent US3280438A successfully refreshed from Google Patents.
US3280438A
Expired / Lapsed
US
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"g" hook couplers
Assignee: Individual
•
Filing: 1965-05-10
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Granted: 1966-10-25
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Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Frank J Luketa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:04
CPC Classifications
F; F16; F16G; F16G17/00; A; A01; A01K; A01K75/00; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/43; Y10S24/49; Y10T; Y10T24/00; Y10T24/45; Y10T24/45005; Y10T24/45115; Y10T24/4512; Y10T24/45225; Y10T24/45969
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A HOOK AND RING COUPLER COMPRISING A COUPLING HOOK AND A COUPLING RING MEMBER, SAID COUPLING HOOK HAVING A POINT OPPOSED BY A SHOULDER PROVIDING AN ACCESS THROAT THEREBETWEEN, SAID COUPLING RING MEMBER HAVING AN OPEN INTERIOR, AN ACCESS SEGMENT OF REDUCED DIMENSION PROVIDING AN ENTRANCE AND AN EXIT FOR THE COUPLING HOOK INTO AND OUT FROM SAID OPEN INTERIOR, AND INCLUDING AT LEAST ONE INSET SIDE SURFACE, A PROTUBERANCE AT EACH END OF SAID INSET SIDE SURFACE PROJECTING OUTWARDLY FROM A SIDE OF SAID RING GENERALLY PERPENDICULARLY TO THE DIRECTION OF COUPLING AND DECOUPLING MOVEMENT OF THE HOOK AT THE ACCESS SEGMENT, LOCK SURFACES OF SUBSTANTIAL AREA ON EACH
Claim 2
Dependent Claim
110 words
A HOOK AND RING COUPLER COMPRISING A COUPLING HOOK AND A COUPLING RING MEMBER, SAID COUPLING HOOK HAVING A POINT OPPOSED BY A SHOULDER PROVIDING AN ACCESS THROAT THEREBETWEEN, SAID COUPLING RING MEMBER HAVING AN OPEN INTERIOR, AN ACCESS SEGMENT OF REDUCED DIMENSION PROVIDING AN ENTRANCE AND AN EXIT FOR THE COUPLING HOOK INTO AND OUT FROM SAID OPEN INTERIOR, AND INCLUDING AT LEAST ONE INSET SIDE SURFACE, A PROTUBERANCE AT EACH END OF SAID INSET SIDE SURFACE PROJECTING OUTWARDLY FROM A SIDE OF SAID RING GENERALLY PERPENDICULARLY TO THE DIRECTION OF COUPLING AND DECOUPLING MOVEMENT OF THE HOOK AT THE ACCESS SEGMENT, LOCK SURFACES OF SUBSTANTIAL AREA ON EACH
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |