Patent US3146801A successfully refreshed from Google Patents.
US3146801A
Expired / Lapsed
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Fourdrinier wire and method of making the same
Assignee: Eastwood-Nealley Co
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Filing: 1961-07-20
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Granted: 1964-09-01
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Expires: 1981-07-20
Abstract
No abstract record available.
Inventors
- 👤 William M Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:13
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A FOURDRINIER WIRE COMPRISING A TWILL WEAVE OF METAL WARP AND SHUTE WIRES, THE WARP WIRES HAVING A MINIMUM COUNT OF ABOUT 40 WIRES PER INCH AND A CROSS-SECTIONAL AREA AT LEAST SUBSTANTIALLY AS GREAT AS THE CROSS-SECTIONAL AREA OF THE SHUTE WIRES AND THE LATTER HAVING A CROSS-SECTIONAL AREA EQUAL TO THAT OF ROUND WIRE HAVING A DIAMETER RANGING FROM ABOUT .005" TO .018", SAID SHUTE WIRES HAVING A COUNT OF ABOUT FROM 30 TO 90 WIRES PER INCH AND BEING INTERSPACED AT LEAST APPROXIMATELY AS CLOSELY AS ARE THE WARP WIRES, AT LEAST THE SHUTE WIRES BEING COVERED
Claim 2
Dependent Claim
100 words
A FOURDRINIER WIRE COMPRISING A TWILL WEAVE OF METAL WARP AND SHUTE WIRES, THE WARP WIRES HAVING A MINIMUM COUNT OF ABOUT 40 WIRES PER INCH AND A CROSS-SECTIONAL AREA AT LEAST SUBSTANTIALLY AS GREAT AS THE CROSS-SECTIONAL AREA OF THE SHUTE WIRES AND THE LATTER HAVING A CROSS-SECTIONAL AREA EQUAL TO THAT OF ROUND WIRE HAVING A DIAMETER RANGING FROM ABOUT .005" TO .018", SAID SHUTE WIRES HAVING A COUNT OF ABOUT FROM 30 TO 90 WIRES PER INCH AND BEING INTERSPACED AT LEAST APPROXIMATELY AS CLOSELY AS ARE THE WARP WIRES, AT LEAST THE SHUTE WIRES BEING COVERED
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |