US3299628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master link for suspension device and manufacture thereof
Assignee: Mckay Co
•
Filing: 1964-04-14
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Granted: 1967-01-24
•
Expires: 1984-04-14
Abstract
No abstract record available.
Inventors
- 👤 Paul E Chisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:03
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/04; B66C1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A MASTER LINK FOR A SUSPENSION DEVICE COMPRISING A BASE PORTION ADAPTED TO CARRY SUSPENSION ELEMENTS SUCH AS CHAINS, THE MASTER LINK HAVING A SUBSTANTIALLY FLAT FACE SPACED SUBSTANTIALLY BELOW THE BASE PORTION UPON WHICH THE MASTER LINK IS ADAPTED TO BE SET DOWN AND A PORTION HAVING THEREIN AN OPENING CONSTITUTING AN EYE ADAPTED TO RECEIVE A CRANE HOOK, THE SECOND MENTIONED PORTION BEING DISPOSED SUBSTANTIALLY PERPENDICULAR TO SAID SUBSTANTIALLY FLAT FACE OF THE MASTER LINK SO THAT WHEN THE MASTER LINK IS SET DOWN ON SAID SUBSTANTIALLY FLAT FACE THE SECOND MENTIONED PORTION EXTENDS UPWARDLY WITH ITS EYE IN GENERALLY UPRIGHT POSITION TO BE ADAPTED TO RECEIVE A CRANE HOOK SOLELY THROUGH MANIPULATION BY THE CRANE OPERATOR WITHOUT THE NECESSITY OF INTRODUCTION OF THE CRANE HOOK INTO THE EYE OF THE MASTER LINK BY A WORKMAN ON THE GROUND.
Claim 2
Dependent Claim
141 words
A MASTER LINK FOR A SUSPENSION DEVICE COMPRISING A BASE PORTION ADAPTED TO CARRY SUSPENSION ELEMENTS SUCH AS CHAINS, THE MASTER LINK HAVING A SUBSTANTIALLY FLAT FACE SPACED SUBSTANTIALLY BELOW THE BASE PORTION UPON WHICH THE MASTER LINK IS ADAPTED TO BE SET DOWN AND A PORTION HAVING THEREIN AN OPENING CONSTITUTING AN EYE ADAPTED TO RECEIVE A CRANE HOOK, THE SECOND MENTIONED PORTION BEING DISPOSED SUBSTANTIALLY PERPENDICULAR TO SAID SUBSTANTIALLY FLAT FACE OF THE MASTER LINK SO THAT WHEN THE MASTER LINK IS SET DOWN ON SAID SUBSTANTIALLY FLAT FACE THE SECOND MENTIONED PORTION EXTENDS UPWARDLY WITH ITS EYE IN GENERALLY UPRIGHT POSITION TO BE ADAPTED TO RECEIVE A CRANE HOOK SOLELY THROUGH MANIPULATION BY THE CRANE OPERATOR WITHOUT THE NECESSITY OF INTRODUCTION OF THE CRANE HOOK INTO THE EYE OF THE MASTER LINK BY A WORKMAN ON THE GROUND.
References Cited (Backward Citations)
US2288793A
Cited
US2626175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |