US2499653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of protein-containing textile materials and products thereof
Assignee: Wyeth Holdings LLC
•
Filing: 1946-10-17
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Granted: 1950-03-07
•
Expires: 1966-10-17
Abstract
No abstract record available.
Inventors
- 👤 Edward L Kropa
- 👤 Arthur S Nyquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:46
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS OF TREATING PROTEIN-CONTAINING TEXTILE MATERIAL TO REDUCE THE FELTING AND SHRINKING TENDENCIES THEREOF WHICH COMPRISES (1) TREATING SAID TEXTILE MATERIAL SOLELY WITH A COMPOSITION COMPRISING A REACTIVE PRODUCT OF POLYMERIZATION OF A POLYMERIZABLE MIXTURE INCLUDING, BY WEIGHT, FROM ABOUT 2 TO 20% OF MALEIC ANHYDRIDE AND FROM ABOUT 98 TO 80% OF A LOWER ALKYL ESTER OF ACRYLIC ACID THAT CONTAINS FROM ONE TO FOUR CARBON ATOMS, INCLUSIVE, IN THE ALKYL GROUPING THEREOF, AND (2) HEATING THE RESULTING TREATED MATERIAL TO CURE THE SAID POLYMERICATION PRODUCT.
Claim 2
Dependent Claim
88 words
A PROCESS OF TREATING PROTEIN-CONTAINING TEXTILE MATERIAL TO REDUCE THE FELTING AND SHRINKING TENDENCIES THEREOF WHICH COMPRISES (1) TREATING SAID TEXTILE MATERIAL SOLELY WITH A COMPOSITION COMPRISING A REACTIVE PRODUCT OF POLYMERIZATION OF A POLYMERIZABLE MIXTURE INCLUDING, BY WEIGHT, FROM ABOUT 2 TO 20% OF MALEIC ANHYDRIDE AND FROM ABOUT 98 TO 80% OF A LOWER ALKYL ESTER OF ACRYLIC ACID THAT CONTAINS FROM ONE TO FOUR CARBON ATOMS, INCLUSIVE, IN THE ALKYL GROUPING THEREOF, AND (2) HEATING THE RESULTING TREATED MATERIAL TO CURE THE SAID POLYMERICATION PRODUCT.
References Cited (Backward Citations)
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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) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |