Patent US4448418A successfully refreshed from Google Patents.
Patent US3881684A successfully refreshed from Google Patents.
US3881684A
Expired / Lapsed
US
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Tie rod for concrete forms
Assignee: Individual
•
Filing: 1973-01-26
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Granted: 1975-05-06
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Expires: 1993-01-26
Abstract
Abstract A tie rod for concrete forms which is formed from a length of wire and has defined adjacent opposite ends thereof latchreceiving portions of substantially square cross-section outwardly subtended by flanges of greater dimension than the diameter of the wire.
Inventors
- 👤 Jr Ransom J Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:39
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721; E04G17/075; E04G17/0751; E04G17/0754
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
77 words
A tie rod for concrete forms comprising a length of wire of predetermined diameter having adjacent each end thereof a length of substantially square cross-section outwardly subtended by an annular flange, said flanges being integral with said rod, said flanges being of greater diameter than the diameter of said wire and at least as great as the cross-section diagonal of said square length whereby said flanges provide surfaces extending outwardly from each edge of said square section.
Claim 2
Dependent Claim
77 words
A tie rod for concrete forms comprising a length of wire of predetermined diameter having adjacent each end thereof a length of substantially square cross-section outwardly subtended by an annular flange, said flanges being integral with said rod, said flanges being of greater diameter than the diameter of said wire and at least as great as the cross-section diagonal of said square length whereby said flanges provide surfaces extending outwardly from each edge of said square section.
Claim 3
Dependent Claim
25 words
The rod of claim 1 wherein the cross-sectional area of said substantially square section is essentially the same as the cross-sectional area of the wire.
Claim 4
Dependent Claim
24 words
The rod of claim 1 wherein the dimension across any surface of said substantially square section is less than the diameter of said wire.
Claim 5
Dependent Claim
33 words
The tie rod of claim 1 further defined for the provision of a length of wire outwardly of said flanges at each end of said wire adapted to be engaged by a tool.
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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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |