US3286975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp for concrete forms
Assignee: Individual
•
Filing: 1964-07-20
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Granted: 1966-11-22
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Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Langford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:04
CPC Classifications
E; E04; E04G; E04G17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A FORMING SYSTEM COMPRISING IN COMBINATION: (A) A PLURALITY OF PANELS WHOSE EDGES ARE SUBSTANTIALLY CONTIGUOUS AND WHIH IN COMBINATION FORM A CONTINUOUS FORMING SURFACE; (1) SAID PANELS EACH HAVING AT LEAST ONE FLANGE PROTRUDING FROM TGHE NON-FORMING SURFACE, SAID FLANGE BEING ADJACENT A PANEL EDGE; (B) MEANS COOPERATING WITH ADJACENT FLANGES OF ADJACENT PANELS FOR HOLDING THE PANELS IN CONTIGUOUS RELATION; (C) A SEALING MEMBER DISPOSED BETWEEN CONFRONTING EDGES OF THE PANELS; (D) AND WEDGING MEANS FOR SPREADING THE SEALING MEMBER INTO SEALING RELATIONSHIP WITH THE CONFRONTING EDGES OF THE PANELS.
Claim 2
Dependent Claim
92 words
A FORMING SYSTEM COMPRISING IN COMBINATION: (A) A PLURALITY OF PANELS WHOSE EDGES ARE SUBSTANTIALLY CONTIGUOUS AND WHIH IN COMBINATION FORM A CONTINUOUS FORMING SURFACE; (1) SAID PANELS EACH HAVING AT LEAST ONE FLANGE PROTRUDING FROM TGHE NON-FORMING SURFACE, SAID FLANGE BEING ADJACENT A PANEL EDGE; (B) MEANS COOPERATING WITH ADJACENT FLANGES OF ADJACENT PANELS FOR HOLDING THE PANELS IN CONTIGUOUS RELATION; (C) A SEALING MEMBER DISPOSED BETWEEN CONFRONTING EDGES OF THE PANELS; (D) AND WEDGING MEANS FOR SPREADING THE SEALING MEMBER INTO SEALING RELATIONSHIP WITH THE CONFRONTING EDGES OF THE PANELS.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |