US2920980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finishing fabrics
Assignee: EIDP Inc
•
Filing: 1956-03-28
•
Granted: 1960-01-12
•
Expires: 1976-03-28
Abstract
No abstract record available.
Inventors
- 👤 David D Mooberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:01
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/53; Y; Y10; Y10S; Y10S260/00; Y10S260/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
THE PROCESS OF FINISHING FABRICS CONTAINING SUBSTANTIAL AMOUNTS OF LINEAR CONDENSATION POLYESTER FIBERS AND WHICH HAVE A TENDENCY TO FORM SURFACE PILLS IN USE WHICH COMPRISES REDUCING THEIR PILLING TENDENCY WITHOUT IMPAIRMENT OF THE PROPERTIES OF THE FABRICS BY IMPREGNATING THE SAID FABRICS WITH A LIQUID MEDIUM COMPRISING AT LEAST 5% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYETHER GLYCOLS, THEIR ESTERS, THEIR ETHERS, AND MIXTURES THEREOF, THE ALKYLENE OXIDE COMPONENT OF WHICH HAS A MOLECULAR WEIGHT OF AT LEAST 300, AND THEREAFTER HEATING AT LEAST ONE SURFACE OF THE IMPREGNATED FABRIC TO A TEMPERATURE OF FROM ABOUT 18*C. TO THE FUSION TEMPERATURE OF THE SURFACE FIBERS WHILE MAINTAINING THE TEMPERATURE OF THE BODY OF THE FABRIC SUFFICIENTLY BELOW THE TEMPERATURE OF THE FABRIC SURFACE SO AS TO AVOID DEGRADATION OF THE BODY PORTION OF THE FABRIC.
Claim 2
Dependent Claim
141 words
THE PROCESS OF FINISHING FABRICS CONTAINING SUBSTANTIAL AMOUNTS OF LINEAR CONDENSATION POLYESTER FIBERS AND WHICH HAVE A TENDENCY TO FORM SURFACE PILLS IN USE WHICH COMPRISES REDUCING THEIR PILLING TENDENCY WITHOUT IMPAIRMENT OF THE PROPERTIES OF THE FABRICS BY IMPREGNATING THE SAID FABRICS WITH A LIQUID MEDIUM COMPRISING AT LEAST 5% BY WEIGHT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYETHER GLYCOLS, THEIR ESTERS, THEIR ETHERS, AND MIXTURES THEREOF, THE ALKYLENE OXIDE COMPONENT OF WHICH HAS A MOLECULAR WEIGHT OF AT LEAST 300, AND THEREAFTER HEATING AT LEAST ONE SURFACE OF THE IMPREGNATED FABRIC TO A TEMPERATURE OF FROM ABOUT 18*C. TO THE FUSION TEMPERATURE OF THE SURFACE FIBERS WHILE MAINTAINING THE TEMPERATURE OF THE BODY OF THE FABRIC SUFFICIENTLY BELOW THE TEMPERATURE OF THE FABRIC SURFACE SO AS TO AVOID DEGRADATION OF THE BODY PORTION OF THE FABRIC.
References Cited (Backward Citations)
US2357526A
Cited
US2663989A
Cited
US2645584A
Cited
US2676115A
Cited
US2747981A
Cited
US2730481A
Cited
US2767107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |