Patent US3701723A successfully refreshed from Google Patents.
Patent US3041199A successfully refreshed from Google Patents.
US3041199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrinkle resistant cellulose fabric and method of production
Assignee: Calico Printers Association Ltd
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Filing: 1960-07-20
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Granted: 1962-06-26
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Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 William S Miller
- 👤 Wild Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:41
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393; Y10T442/2549
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A PROCESS FOR FINISHING COTTON FABRIC TO IMPART WRINKLE-RESISTANCE THERETO WITHOUT CAUSING THE FABRIC TO BE PRONE TO CHEMICAL DEGRADATION BY CHLORINE CONTAINING BLEACHING AGENTS WHICH COMPRISES IMPREGNATING COTTON FABRIC WITH BETWEEN ABOUT 3 AND 15% BY WEIGHT OF A PRECONDENSATE OF ETHYLENE UREA AND FORMALDEHYDE AND WITH BETWEEN ABOUT 0.1 AND 1% BY WEIGHT OF N-METHYLOL SUCCINAMIC ACID AND HEATING THE IMPREGNATED FABRIC AT A TEMPERATURE BETWEEN ABOUT 100* AND 200*C. FOR BETWEEN ABOUT 1 AND 15 MINUTES TO FIX THE PRECONDENSATE AND ACID ON THE FABRIC.
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) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |