US3197790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for imparting durable loft and warmth to cellulosic fabrics
Assignee: COTTON PRODUCERS INST OF N
•
Filing: 1964-05-06
•
Granted: 1965-08-03
•
Expires: 1984-05-06
Abstract
No abstract record available.
Inventors
- 👤 Nelson F Getchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:02
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR IMPARTING TO A CELLULOSIC FABRIC THE DESIRABLE CHARACTERISTIC OF MAINTAINING ITS APPEARANCE EVEN AFTER REPEATED LAUNDERINGS AND FOR INCREASING ITS THICKNESS, COMPRESSIBILITY, AND INSULATING PROPERTIES, COMPRISING APPLYING TO SAID CELLULOSIC FABRIC A CROSSLINKING REAGENT CAPABLE OF REACTING WITH THE CELLULOSIC MOLECULES OF SAID FABRIC AND FORMING CROSSLINKAGES WITH SAID MOLECULES, LOFTING THE FABRIC BY MECHANICAL AGITATION TO INCREASE THE THICKNESS OF THE FABRIC AND INCREASE THE RATIO OF THE VOLUME OF ENTRAPPED AIR TO THE VOLUME OF CELLULOSIC FIBERS AND THEN CURING THE CROSSLINKING REAGENT ON SAID LOFTED FABRIC WHILE SAID FABRIC HAS AN INCREASED THICKNESS AND HAS THE VOLUME OF ENTRAPPED AIR TO THE VOLUME OF CELLULOSIC FIBERS INCREASED.
Claim 2
Dependent Claim
113 words
A PROCESS FOR IMPARTING TO A CELLULOSIC FABRIC THE DESIRABLE CHARACTERISTIC OF MAINTAINING ITS APPEARANCE EVEN AFTER REPEATED LAUNDERINGS AND FOR INCREASING ITS THICKNESS, COMPRESSIBILITY, AND INSULATING PROPERTIES, COMPRISING APPLYING TO SAID CELLULOSIC FABRIC A CROSSLINKING REAGENT CAPABLE OF REACTING WITH THE CELLULOSIC MOLECULES OF SAID FABRIC AND FORMING CROSSLINKAGES WITH SAID MOLECULES, LOFTING THE FABRIC BY MECHANICAL AGITATION TO INCREASE THE THICKNESS OF THE FABRIC AND INCREASE THE RATIO OF THE VOLUME OF ENTRAPPED AIR TO THE VOLUME OF CELLULOSIC FIBERS AND THEN CURING THE CROSSLINKING REAGENT ON SAID LOFTED FABRIC WHILE SAID FABRIC HAS AN INCREASED THICKNESS AND HAS THE VOLUME OF ENTRAPPED AIR TO THE VOLUME OF CELLULOSIC FIBERS INCREASED.
References Cited (Backward Citations)
US2080043A
Cited
GB518167A
Cited
GB497647A
Cited
GB547846A
Cited
US2517529A
Cited
US2590713A
Cited
US2950553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |