Patent US2961344A successfully refreshed from Google Patents.
US2961344A
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Method of treating a woven glass fabric with a water soluble salt of a partially deacetylated chitin
Assignee: Moretex Chemical Products Inc
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Filing: 1957-02-01
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Granted: 1960-11-22
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Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Ira S Hurd
- 👤 George M Haynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:59
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; C; C03; C03C; C03C25/00; C03C25/10; C03C25/1095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF TREATING A WOVEN GLASS FABRIC WHICH COMPRISES THE STEPS OF PADDING THE FABRIC WITH AN AQUEOUS SOLUTION OF A WATER SOLUBLE SALT OF A PARTIALLY DEACETYLATED CHITIN, THE SAID CHITIN HAVING A FREE AMINO GROUP RATIO OF ABOUT 0.7 TO 0.9 PER CHITOSAMINE UNIT, SEPARATING EXCESS SOLUTION THEREFORM TO DEPOSIT A FILM IN THE AMOUNT OF LESS THAN 1 PERCENT OF THE GLASS ON THE SURFACE OF THE FABRIC, DRYING THE FABRIC, AND SUBSEQUENTLY HEAT-TREATING THE FABRIC AND THE DEPOSITED FILM AT A TEMPERATURE IN THE RANGE OF 250* TO 275*F.
Claim 2
Independent Claim
94 words
A METHOD OF TREATING A WOVEN GLASS FABRIC WHICH COMPRISES THE STEPS OF PADDING THE FABRIC WITH AN AQUEOUS SOLUTION OF A WATER SOLUBLE SALT OF A PARTIALLY DEACETYLATED CHITIN, THE SAID CHITIN HAVING A FREE AMINO GROUP RATIO OF ABOUT 0.7 TO 0.9 PER CHITOSAMINE UNIT, SEPARATING EXCESS SOLUTION THEREFORM TO DEPOSIT A FILM IN THE AMOUNT OF LESS THAN 1 PERCENT OF THE GLASS ON THE SURFACE OF THE FABRIC, DRYING THE FABRIC, AND SUBSEQUENTLY HEAT-TREATING THE FABRIC AND THE DEPOSITED FILM AT A TEMPERATURE IN THE RANGE OF 250* TO 275*F.
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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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |