Patent US3075272A successfully refreshed from Google Patents.
US3075272A
Expired / Lapsed
US
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Concrete form tie and method of producing the same
Assignee: Individual
•
Filing: 1958-02-18
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Granted: 1963-01-29
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Expires: 1978-02-18
Abstract
No abstract record available.
Inventors
- 👤 Frank E Buyken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:14
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49632
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
A CONCRETE FORM TIE ROD, COMPRISING: A BUTTON-HEADED ROD HAVING A FORM-ABUTTING WASHER THREADEDLY SECURED THEREON BY MATING THREAD ELEMENTS, SAID THREAD ELEMENTS COMPRISING THREAD FORMING FEMALE ELEMENTS IN SAID WASHER AND MALE THREAD ELEMENTS ROTATIVELY FORMED ON SAID ROD BY THE ROTARY ENGAGEMENT THEREON OF SAID WASHER, SAID WASHER BEING LOCATED IN SPACED RELATION INWARD OF THE BUTTON-HEAD ON THE ROD, AND SAID ROD HAVING A BREAK POINT INWARD OF SAID WASHER, SAID BREAK POINT WEAKENING SAID ROD TO A GREATER EXTENT THAN THE MALE THREAD ELEMENTS THEREON.
References Cited (Backward Citations)
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US2222339A
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US2657455A
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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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |