Patent US2980557A successfully refreshed from Google Patents.
US2980557A
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Non-felting wool and methods for preparing the same
Assignee: Deering Milliken Research Corp
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Filing: 1958-01-16
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Granted: 1961-04-18
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Fleur Kermit S La
- 👤 Edwin J Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:51
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2352; Y10T442/2549; Y10T442/2574; Y10T442/273; Y10T442/2762
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A WASHABLE FABRIC WITH AN AREA FELTING SHRINKAGE OF LESS THAN 10% WHICH IS COMPOSED LARGELY OF WOOL FIBERS HAVING THEIR SCALE STRUCTURE DESTROYED BY HALOGENATION TO SUCH AN EXTENT THT THEY ARE SUBSTANTIALLY NONFELING, SAID FIBERS HAVING DEPOSITED THEREON FROM ABOUT 0.2% TO 4%, BY WEIGHT OF THE WOOL, OF A WATER-INSOLUBLE POLYMER OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF SILICONES CAPABLE OF BEING EPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
71 words
A WASHABLE FABRIC WITH AN AREA FELTING SHRINKAGE OF LESS THAN 10% WHICH IS COMPOSED LARGELY OF WOOL FIBERS HAVING THEIR SCALE STRUCTURE DESTROYED BY HALOGENATION TO SUCH AN EXTENT THT THEY ARE SUBSTANTIALLY NONFELING, SAID FIBERS HAVING DEPOSITED THEREON FROM ABOUT 0.2% TO 4%, BY WEIGHT OF THE WOOL, OF A WATER-INSOLUBLE POLYMER OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF SILICONES CAPABLE OF BEING EPRESENTED BY THE FORMULA:
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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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |