Patent US3263956A successfully refreshed from Google Patents.
US3263956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete accessory
Assignee: Dayton Sure Grip and Shore Co
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Filing: 1964-09-14
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Granted: 1966-08-02
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Robert P Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:07
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/168
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN COMBINATION WITH A PAIR OF FORMS HAVING INNER SURFACES POSITIONED IN PREDETERMINED PARALLEL SPACED RELATION TO DEFINE A CONCRETE WALL HAVING A CORRESPONDING PREDETERMINED THICKNESS, AND A PAIR OF REINFORCING MEANS POSITIONED BETWEEN SAID SURFACES FOR REINFORCING THE WALL, AN IMPROVED SPACER FOR POSITIONING SAID REINFORCING MEANS IN PREDETERMINED SPACED RELATION WITH EACH OTHER AND WITH SAID INNER SURFACES, COMPRISING A CENTRAL PORTION HAVING A LENGTH ESTABLISHING THE PREDETERMINED SPACING OF SAID REINFORCING MEANS, AN INTERMEDIATE LEG PORTION EXTENDING FROM EACH END OF SAID CENTRAL PORTION AND DEFINING A HOOK FOR ENGAGING AND RETAINING ONE OF SAID REINFORCING MEANS, AN END LEG PORTION EXTENDING OUTWARDLY FROM EACH SAID INTERMEDIATE LEG PORTION, AND SAID END LEG PORTIONS DEFINING AN OVERALL LENGTH OF SAID SPACER NO GREATER THAN SAID SPACED RELATION OF SAID INNER FORM SURFACES.
Claim 2
Dependent Claim
135 words
IN COMBINATION WITH A PAIR OF FORMS HAVING INNER SURFACES POSITIONED IN PREDETERMINED PARALLEL SPACED RELATION TO DEFINE A CONCRETE WALL HAVING A CORRESPONDING PREDETERMINED THICKNESS, AND A PAIR OF REINFORCING MEANS POSITIONED BETWEEN SAID SURFACES FOR REINFORCING THE WALL, AN IMPROVED SPACER FOR POSITIONING SAID REINFORCING MEANS IN PREDETERMINED SPACED RELATION WITH EACH OTHER AND WITH SAID INNER SURFACES, COMPRISING A CENTRAL PORTION HAVING A LENGTH ESTABLISHING THE PREDETERMINED SPACING OF SAID REINFORCING MEANS, AN INTERMEDIATE LEG PORTION EXTENDING FROM EACH END OF SAID CENTRAL PORTION AND DEFINING A HOOK FOR ENGAGING AND RETAINING ONE OF SAID REINFORCING MEANS, AN END LEG PORTION EXTENDING OUTWARDLY FROM EACH SAID INTERMEDIATE LEG PORTION, AND SAID END LEG PORTIONS DEFINING AN OVERALL LENGTH OF SAID SPACER NO GREATER THAN SAID SPACED RELATION OF SAID INNER FORM SURFACES.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |