Patent US2819189A successfully refreshed from Google Patents.
US2819189A
Expired / Lapsed
US
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Process of sizing textile yarn and product thereof
Assignee: Wyeth Holdings LLC
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Filing: 1954-11-15
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Granted: 1958-01-07
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Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Suen Tzeng-Jieuq
- 👤 Russell William Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:21
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS OF WARP SIZING TEXTILE YARNS WHICH COMPRISES APPLYING AN AQUEOUS SOLUTION OF PH BETWEEN ABOUT 5 AND ABOUT 9 OF A COPOLYMER HAVING RECURRING NITRILE AND -COOX GROUPS IN A RATIO BETWEEN 1:0.30 AND 1:0.75 ATTACHED TO A LINEAR CARBON CHAIN OF SUBSTANTIAL LENGTH WHEREIN X IS OF THE GROUP CONSISTING OF HYDROGEN, SODIUM, POTASSIUM AND THE AMMONIUM RADICAL, WHICH COPOLYMER HAS A VISCOSITY BETWEEN ABOUT 5 AND ABOUT 200 CENTIPOISES WHEN DETERMINED AT A CONCENTRATION OF 5 PERCENT BY WEIGHT IN WATER AT 140 DEGREES FAHRENHEIT, IN SUFFICIENT QUANTITY TO DEPOSIT ON A TEXTILE YARN BETWEEN ABOUT 2 AND ABOUT 10 PERCENT OF COPOLYMER, BASED ON THE WEIGHT OF THE UNTREATED DRY YARN, AND DRYING THE TREATED YARN TO PRODUCE A READILY-SCOURABLE DRY PROTECTIVE COATING OF THE COPOLYMER ON THE YARN.
Claim 2
Dependent Claim
134 words
A PROCESS OF WARP SIZING TEXTILE YARNS WHICH COMPRISES APPLYING AN AQUEOUS SOLUTION OF PH BETWEEN ABOUT 5 AND ABOUT 9 OF A COPOLYMER HAVING RECURRING NITRILE AND -COOX GROUPS IN A RATIO BETWEEN 1:0.30 AND 1:0.75 ATTACHED TO A LINEAR CARBON CHAIN OF SUBSTANTIAL LENGTH WHEREIN X IS OF THE GROUP CONSISTING OF HYDROGEN, SODIUM, POTASSIUM AND THE AMMONIUM RADICAL, WHICH COPOLYMER HAS A VISCOSITY BETWEEN ABOUT 5 AND ABOUT 200 CENTIPOISES WHEN DETERMINED AT A CONCENTRATION OF 5 PERCENT BY WEIGHT IN WATER AT 140 DEGREES FAHRENHEIT, IN SUFFICIENT QUANTITY TO DEPOSIT ON A TEXTILE YARN BETWEEN ABOUT 2 AND ABOUT 10 PERCENT OF COPOLYMER, BASED ON THE WEIGHT OF THE UNTREATED DRY YARN, AND DRYING THE TREATED YARN TO PRODUCE A READILY-SCOURABLE DRY PROTECTIVE COATING OF THE COPOLYMER ON THE YARN.
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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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |