Patent US2992962A successfully refreshed from Google Patents.
Patent US2752269A successfully refreshed from Google Patents.
US2752269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of textile materials
Assignee: Shell Development Co
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Filing: 1951-12-01
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Granted: 1956-06-26
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Expires: 1971-12-01
Abstract
No abstract record available.
Inventors
- 👤 Fred E Condo
- 👤 Carl W Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:34
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/625; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/55; Y; Y10; Y10S; Y10S8/00; Y10S8/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR PRODUCING CREASE RESISTANT AND WRINKLE RESISTANT TEXTILE FABRICS CONTAINING SUBSTANTIALLY ALL CELLULOSIC MATERIAL OF THE GROUP CONSISTING OF COTTON AND RAYON HAVING A SOFT FEEL AND IMPROVED RESISTANCE TO WASHING AND LOW CHLORINE RETENTION WHICH COMPRISES IMPREGNATING THE TEXTILE FABRIC WITH A WATER-ALCOHOL SOLUTION CONTAINING A SATURATED POLYGLYCIDYL ETHER OF A POLYHYDRIC ALCOHOL HAVING AN EPOXY EQUIVALENCY GREATER THAN 1.0 AND A MOLECULAR WEIGHT BETWEEN 300 AND 900 AND AN ACID CURING AGENT, DRYING THE COMPOSITION FOR A SHORT PERIOD, AND THEN HEATING THE COMPOSITION AT A TEMPERATURE BETWEEN 50* C. AND 200* C. TO CURE THE POLYEPOXIDE WITHIN THE FIBERS OF THE SAID FABRIC.
Claim 2
Dependent Claim
108 words
A PROCESS FOR PRODUCING CREASE RESISTANT AND WRINKLE RESISTANT TEXTILE FABRICS CONTAINING SUBSTANTIALLY ALL CELLULOSIC MATERIAL OF THE GROUP CONSISTING OF COTTON AND RAYON HAVING A SOFT FEEL AND IMPROVED RESISTANCE TO WASHING AND LOW CHLORINE RETENTION WHICH COMPRISES IMPREGNATING THE TEXTILE FABRIC WITH A WATER-ALCOHOL SOLUTION CONTAINING A SATURATED POLYGLYCIDYL ETHER OF A POLYHYDRIC ALCOHOL HAVING AN EPOXY EQUIVALENCY GREATER THAN 1.0 AND A MOLECULAR WEIGHT BETWEEN 300 AND 900 AND AN ACID CURING AGENT, DRYING THE COMPOSITION FOR A SHORT PERIOD, AND THEN HEATING THE COMPOSITION AT A TEMPERATURE BETWEEN 50* C. AND 200* C. TO CURE THE POLYEPOXIDE WITHIN THE FIBERS OF THE SAID FABRIC.
References Cited (Backward Citations)
US2511913A
Cited
US2444333A
Cited
US2589245A
Cited
US2494295A
Cited
US2512996A
Cited
US2541027A
Cited
US2606810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |