Patent US4382760A successfully refreshed from Google Patents.
Patent US3427121A successfully refreshed from Google Patents.
US3427121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrinkle-resistant cotton fabrics with improved moisture absorption
Assignee: United States Department of Agriculture
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Filing: 1963-06-24
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Granted: 1969-02-11
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Expires: 1983-06-24
Abstract
No abstract record available.
Inventors
- 👤 John G Frick Jr
- 👤 Andrew G Pierce Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
IN A PROCESS FOR TREATING COTTON FABRTICS WITH NITROGENCONTAINING RESINS, THE IMPROVEMENT WHICH CONSISTS OF INCORPORATING INTO THE RESIN-TREATING FORMULATION A QUANTITY OF FROM ABOUT 5.0% TO ABOUT 7.5% OF TETRAETHYLENE GLYCOL DIMETHYL ETHER.
Claim 2
Dependent Claim
34 words
IN A PROCESS FOR TREATING COTTON FABRTICS WITH NITROGENCONTAINING RESINS, THE IMPROVEMENT WHICH CONSISTS OF INCORPORATING INTO THE RESIN-TREATING FORMULATION A QUANTITY OF FROM ABOUT 5.0% TO ABOUT 7.5% OF TETRAETHYLENE GLYCOL DIMETHYL ETHER.
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |