US3117358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for cement radius forms
Assignee: Individual
•
Filing: 1961-06-28
•
Granted: 1964-01-14
•
Expires: 1981-06-28
Abstract
No abstract record available.
Inventors
- 👤 Donald M Kitchen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:38
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/50; E01C19/502; E04; E04G; E04G17/00; E04G17/02; Y; Y10; Y10T; Y10T403/00; Y10T403/57; Y10T403/5793
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN APPARATUS FOR CONNECTING THE ENDS OF TWO FORM BOARDS, COMPRISING OF A HOUSING HAVING A RELATIVELY FLAT WALL WITH TWO LONGITUDINAL EDGES, A FLANGE ALONG EACH OF SAID EDGES, A PAIR OF PLATES EXTENDING BETWEEN AND MOUNTED ON SAID FLANGES, EACH PLATE BEING POSITIONED AT AN ANGLE WITH SAID WALL WHEREBY THE SAID WALL, THE SAID FLANGE AND EACH OF THE SAID PLATES DEFINE AN OPENING, A FORM BOARD INSERTED IN EACH SAID OPENING IN A DIRECTION PARALLEL TO THE SAID WALL EDGES, AND EACH SAID PLATE CONVERGING TOWARD SAID WALL FOR ENGAGING AND URGING THE END OF THE ASSOCIATED FORM BOARD TOWARD SAID WALL AND FOR LIMITING THE DISTANCE OF LONGITUDINAL MOVEMENT OF THE FORM BOARD INTO SUCH OPENING.
Claim 2
Independent Claim
121 words
AN APPARATUS FOR CONNECTING THE ENDS OF TWO FORM BOARDS, COMPRISING OF A HOUSING HAVING A RELATIVELY FLAT WALL WITH TWO LONGITUDINAL EDGES, A FLANGE ALONG EACH OF SAID EDGES, A PAIR OF PLATES EXTENDING BETWEEN AND MOUNTED ON SAID FLANGES, EACH PLATE BEING POSITIONED AT AN ANGLE WITH SAID WALL WHEREBY THE SAID WALL, THE SAID FLANGE AND EACH OF THE SAID PLATES DEFINE AN OPENING, A FORM BOARD INSERTED IN EACH SAID OPENING IN A DIRECTION PARALLEL TO THE SAID WALL EDGES, AND EACH SAID PLATE CONVERGING TOWARD SAID WALL FOR ENGAGING AND URGING THE END OF THE ASSOCIATED FORM BOARD TOWARD SAID WALL AND FOR LIMITING THE DISTANCE OF LONGITUDINAL MOVEMENT OF THE FORM BOARD INTO SUCH OPENING.
References Cited (Backward Citations)
US333376A
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US444579A
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US459513A
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US1140632A
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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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |