Patent US3139119A successfully refreshed from Google Patents.
US3139119A
Expired / Lapsed
US
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Fourdrinier fabric
Assignee: Individual
•
Filing: 1960-05-18
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Granted: 1964-06-30
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Expires: 1980-05-18
Abstract
No abstract record available.
Inventors
- 👤 William E Buchanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:29
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/10; D21F1/0027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A FOURDRINIER FABRIC THE COMBINATION COMPRISING A PLURALITY OF METALLIC WARP THREADS EXTENDING LENGTHWISE OF THE FABRIC; AND A PLURALITY OF METALLIC WEFT THREADS OF GREATER STIFFNESS THAN THE WARP THREADS EXTENDING TRANSVERSE OF THE FABRIC, KNUCKLES BEING FORMED IN BOTH THE WEFT AND WARP THREADS WITH THE CRESTS OF THE WEFT THREADS EXTENDING OUTWARDLY OF THOSE OF THE WARP THREADS TO FORM A SURFACE FOR THE FABRIC THAT IS COMPRISED SUBSTANTIALLY OF WEFT CRESTS AND THE NUMBER OF WEFT THREADS PER INCH BEING BETWEEN 1 1/4 AND 4 TIMES THE NUMBER OF WARP THREADS PER INCH.
Claim 2
Dependent Claim
98 words
IN A FOURDRINIER FABRIC THE COMBINATION COMPRISING A PLURALITY OF METALLIC WARP THREADS EXTENDING LENGTHWISE OF THE FABRIC; AND A PLURALITY OF METALLIC WEFT THREADS OF GREATER STIFFNESS THAN THE WARP THREADS EXTENDING TRANSVERSE OF THE FABRIC, KNUCKLES BEING FORMED IN BOTH THE WEFT AND WARP THREADS WITH THE CRESTS OF THE WEFT THREADS EXTENDING OUTWARDLY OF THOSE OF THE WARP THREADS TO FORM A SURFACE FOR THE FABRIC THAT IS COMPRISED SUBSTANTIALLY OF WEFT CRESTS AND THE NUMBER OF WEFT THREADS PER INCH BEING BETWEEN 1 1/4 AND 4 TIMES THE NUMBER OF WARP THREADS PER INCH.
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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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |