US3292893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form system and hardware for concrete construction
Assignee: Individual
•
Filing: 1964-11-16
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Granted: 1966-12-20
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 John R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:12
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/065; E04G17/0655; E04G17/0658
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A DEVICE FOR MAINTAINING OPPOSED WALLS OF A CONCRETE FORM IN SPACED RELATION FOR RECEPTION OF CONCRETE THEREBETWEEN AND EACH HAVING A TRANSVERSE OPENING IN ALIGNMENT WITH THE OPENING OF THE OTHER WALL, COMPRISING A TIE ROD HAVING THREADED ENDS, SPACER CONES HAVING A THREADED SOCKET AT THE SMALLER ENDS ENGAGED BY THE THREADED ENDS OF THE ROD, SAID CONES ALSO HAVING A THREADED SOCKET AT THE LARGER END, EXTENSION RODS EXTENDING THROUGH SAID OPENINGS AND HAVING THREADED ENDS RECEIVED IN THE SOCKETS AT THE LARGER ENDS OF THE SPACERS, MEANS ON THE SPACER CONES OPERATIVELY ENGAGEABLE WITH THE WALL FOR RETAINING THE SPACERS AGAINST ROTATION RELATIVE THERETO, A THRUST RECEIVING ELEMENT ARRANGED FOR POSITIONING ON EACH OF SAID WALLS AND AGAINST MOVEMENT LONGITUDINALLY OF SAID OPENINGS, AND MEANS ON SAID EXTENSION RODS POSITIONED TO ENGAGE BOTH SIDES OF SAID THRUST RECEIVING MEANS AND OPERATIVE TO URGE SAID THRUST RECEIVING MEANS INWARDLY TO URGE THE PANEL TOWARDS AN ASSOCIATED PANEL WITH ROTATION OF THE EXTENSION ROD IN ONE DIRECTION AND OPERATIVE TO MOVE SAID WALLS AWAY FROM EACH OTHER ON ROTATION OF THE EXTENSION ROD IN AN OPPOSITE DIRECTION.
Claim 2
Independent Claim
189 words
A DEVICE FOR MAINTAINING OPPOSED WALLS OF A CONCRETE FORM IN SPACED RELATION FOR RECEPTION OF CONCRETE THEREBETWEEN AND EACH HAVING A TRANSVERSE OPENING IN ALIGNMENT WITH THE OPENING OF THE OTHER WALL, COMPRISING A TIE ROD HAVING THREADED ENDS, SPACER CONES HAVING A THREADED SOCKET AT THE SMALLER ENDS ENGAGED BY THE THREADED ENDS OF THE ROD, SAID CONES ALSO HAVING A THREADED SOCKET AT THE LARGER END, EXTENSION RODS EXTENDING THROUGH SAID OPENINGS AND HAVING THREADED ENDS RECEIVED IN THE SOCKETS AT THE LARGER ENDS OF THE SPACERS, MEANS ON THE SPACER CONES OPERATIVELY ENGAGEABLE WITH THE WALL FOR RETAINING THE SPACERS AGAINST ROTATION RELATIVE THERETO, A THRUST RECEIVING ELEMENT ARRANGED FOR POSITIONING ON EACH OF SAID WALLS AND AGAINST MOVEMENT LONGITUDINALLY OF SAID OPENINGS, AND MEANS ON SAID EXTENSION RODS POSITIONED TO ENGAGE BOTH SIDES OF SAID THRUST RECEIVING MEANS AND OPERATIVE TO URGE SAID THRUST RECEIVING MEANS INWARDLY TO URGE THE PANEL TOWARDS AN ASSOCIATED PANEL WITH ROTATION OF THE EXTENSION ROD IN ONE DIRECTION AND OPERATIVE TO MOVE SAID WALLS AWAY FROM EACH OTHER ON ROTATION OF THE EXTENSION ROD IN AN OPPOSITE DIRECTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |