US3329378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven wire cloth for fourdrinier machines
Assignee: Cheney Bigelow Wire Works Inc
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Filing: 1966-03-04
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Granted: 1967-07-04
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Expires: 1986-03-04
Abstract
No abstract record available.
Inventors
- 👤 Vincent A Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:42
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN TWILL TYPE FOURDRINIER WIRE CLOTH FOR A PAPER MAKING MACHINE, COMPRISING WARP WIRES HAVING A STAINLESS STEEL CORE RESISTANT TO CORROSION BY PAPER MAKING SOLUTIONS AND HAVING A MODULUS OF ELASTICITY OF AT LEAST 25X10**6 P.S.I., AND A METALLIC COATING ON SAID CORE, SAID COATING BEING CHARACTERIZED BY BEING ADAPTED TO BE WORN AWAY AT THE MACHINE SIDE TO EXPOSE SAID CORES OF SAID WARP WIRES IN A RELATIVELY SHORT PERIOD OF TIME OF OPERATION OF SAID FOURDRINIER WIRE IN A PAPER MAKING MACHINE AS COMPARED TO THE PERIOD OF TIME OF THE NORMAL LIFE OF SAID FOURDRINIER WIRE, AND SHUTE WIRES OF A METAL SOFTER THAN SAID CORES OF SAID WARP WIRES AND HAVING AN ANNEALED TENSILE STRENGTH SUBSTANTIALLY LESS THAN 80,000 P.S.I.
Claim 2
Dependent Claim
125 words
IN TWILL TYPE FOURDRINIER WIRE CLOTH FOR A PAPER MAKING MACHINE, COMPRISING WARP WIRES HAVING A STAINLESS STEEL CORE RESISTANT TO CORROSION BY PAPER MAKING SOLUTIONS AND HAVING A MODULUS OF ELASTICITY OF AT LEAST 25X10**6 P.S.I., AND A METALLIC COATING ON SAID CORE, SAID COATING BEING CHARACTERIZED BY BEING ADAPTED TO BE WORN AWAY AT THE MACHINE SIDE TO EXPOSE SAID CORES OF SAID WARP WIRES IN A RELATIVELY SHORT PERIOD OF TIME OF OPERATION OF SAID FOURDRINIER WIRE IN A PAPER MAKING MACHINE AS COMPARED TO THE PERIOD OF TIME OF THE NORMAL LIFE OF SAID FOURDRINIER WIRE, AND SHUTE WIRES OF A METAL SOFTER THAN SAID CORES OF SAID WARP WIRES AND HAVING AN ANNEALED TENSILE STRENGTH SUBSTANTIALLY LESS THAN 80,000 P.S.I.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |