US3343983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of imparting shrink resistance to wool and the resulting product
Assignee: WR Grace and Co
•
Filing: 1964-09-03
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Granted: 1967-09-26
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Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Walter R Wszolek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:10
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/227; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2971; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2385; Y10T442/2762
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN IMPREGNATED TEXTILE ARTICLE CAPABLE OF BEING CURED TO PROVIDE A SHRINK-RESISTANT TEXTILE OF SUBSTANTIALLY UNIMPAIRED HAND CONSISTING ESSENTIALLY OF WOOL IMPREGNATED WITH 1-25% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE IMPREGNATED WOOL OF A CROSS-LINKABLE A-OLEFIN POLYMERIC MATERIAL CONTAINING 0.1 TO 4.0 MILLIEQUIVALENTS CARBONYL/ G. CROSSLINKABLE MATERIAL IN COMBINATION WITH 0.05 TO 50.0 MILLIEQUIVALENTS OF A POLYFUNCTIONAL COMPOUND CONTAINING AT LELAST 2 ALKALINE REACTING PRIMARY AMINO GROUPS/MILLIEQUIVALENT CARBONYL IN THE CROSSLINKABLE A-OLEFIN POLYMERIC MATERIAL.
Claim 2
Dependent Claim
77 words
AN IMPREGNATED TEXTILE ARTICLE CAPABLE OF BEING CURED TO PROVIDE A SHRINK-RESISTANT TEXTILE OF SUBSTANTIALLY UNIMPAIRED HAND CONSISTING ESSENTIALLY OF WOOL IMPREGNATED WITH 1-25% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE IMPREGNATED WOOL OF A CROSS-LINKABLE A-OLEFIN POLYMERIC MATERIAL CONTAINING 0.1 TO 4.0 MILLIEQUIVALENTS CARBONYL/ G. CROSSLINKABLE MATERIAL IN COMBINATION WITH 0.05 TO 50.0 MILLIEQUIVALENTS OF A POLYFUNCTIONAL COMPOUND CONTAINING AT LELAST 2 ALKALINE REACTING PRIMARY AMINO GROUPS/MILLIEQUIVALENT CARBONYL IN THE CROSSLINKABLE A-OLEFIN POLYMERIC MATERIAL.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |