Patent US3216752A successfully refreshed from Google Patents.
US3216752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling means for building frameworks, racks, scaffolds, and the like
Assignee: Individual
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Filing: 1963-06-26
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Granted: 1965-11-09
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Louis L Rifken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:08
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/12; E04G7/18; Y; Y10; Y10T; Y10T403/00; Y10T403/44; Y10T403/71; Y10T403/7158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A COUPLING MEMBER COMPRISING A BODY PORTION HAVING A CENTRAL SOCKET AND A PAIR OF SIDE SOCKETS ALL INTEGRALLY FORMED, EACH OF SAID SOCKETS ADAPTED TO REMOVABLY RECEIVE A SEPARATE REMOVABLE FRAMEWORK MEMBER, THE AXIS OF ONE SIDE SOCKET INTERSECTING THE AXIS OF THE OTHER SIDE SOCKET IN A SINGLE PLANE AND THE LONGITUDINAL AXIS OF SAID CENTRAL SOCKET EXTENDING TRANSVERSELY TO THE AXES OF SAID SIDE SOCKETS, THE FRAMEWORK MEMBER IN SAID CENTRAL SOCKET BEING POSITIONED BETWEEN THE REMOVABLE FRAMEWORK MEMBER IN SAID SIDE SOCKETS, A LOCKING MEMBER SECURED IN SAID BODY AND EXTENDING INTO SAID CENTRAL SOCKET TO ENGAGE THE FRAMEWORK IN SAID CENTRAL SOCKET AND URGE IT AGAINST THE REMOVABLE FRAMEWORKS IN SAID SIDE SOCKETS TO COUPLE SAME TOGETHER, A CLAMPING MEMBER CO-OPERATING WITH SAID LOCKING MEMBER AND EXTENDING INTO SAID BODY AND ENGAGING THE TWO REMOVABLE FRAMEWORKS IN SAID SIDE SOCKETS WHEN IN CLAMPING RELATION TO REINFORCE THE COUPLING OF SAID FRAMEWORKS.
Claim 2
Dependent Claim
156 words
A COUPLING MEMBER COMPRISING A BODY PORTION HAVING A CENTRAL SOCKET AND A PAIR OF SIDE SOCKETS ALL INTEGRALLY FORMED, EACH OF SAID SOCKETS ADAPTED TO REMOVABLY RECEIVE A SEPARATE REMOVABLE FRAMEWORK MEMBER, THE AXIS OF ONE SIDE SOCKET INTERSECTING THE AXIS OF THE OTHER SIDE SOCKET IN A SINGLE PLANE AND THE LONGITUDINAL AXIS OF SAID CENTRAL SOCKET EXTENDING TRANSVERSELY TO THE AXES OF SAID SIDE SOCKETS, THE FRAMEWORK MEMBER IN SAID CENTRAL SOCKET BEING POSITIONED BETWEEN THE REMOVABLE FRAMEWORK MEMBER IN SAID SIDE SOCKETS, A LOCKING MEMBER SECURED IN SAID BODY AND EXTENDING INTO SAID CENTRAL SOCKET TO ENGAGE THE FRAMEWORK IN SAID CENTRAL SOCKET AND URGE IT AGAINST THE REMOVABLE FRAMEWORKS IN SAID SIDE SOCKETS TO COUPLE SAME TOGETHER, A CLAMPING MEMBER CO-OPERATING WITH SAID LOCKING MEMBER AND EXTENDING INTO SAID BODY AND ENGAGING THE TWO REMOVABLE FRAMEWORKS IN SAID SIDE SOCKETS WHEN IN CLAMPING RELATION TO REINFORCE THE COUPLING OF SAID FRAMEWORKS.
References Cited (Backward Citations)
GB661648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |