US3841952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusible interlining
Assignee: Carl Freudenberg KG
•
Filing: 1973-03-19
•
Granted: 1974-10-15
•
Expires: 1993-03-19
Abstract
Abstract 1. IN A FABRIC INTERLINING WITH TERPOLYMERIC RESIN AS A THERMOPLASTIC ADHESIVE, THE IMPROVEMENT WHEREIN 100% OF THE TERPOLYMER CONSISTS OF 3 TO 30% BY WEIGHT STYRENE, 20 TO 40% BY WEIGHT ACRYLONITRILE, 20 TO 77% BY WEIGHT ALKYLACRYLATE HAVING C1-C4 ALKYL RADICAL, SAID TERPOLYMER HAVING AN INTRINSIC VISCOSITY IN THE RANGE BETWEEN 0.3 AND 0.7 DL./G. DETERMINED IN DIMETHYLFORMAMIDE AT 30*C. AND MELTING IN THE RANGE OF 60 TO 150*C.
Inventors
- 👤 R Kimura
- 👤 Z Yoshida
- 👤 T Higuchi
- 👤 K Yamauchi
- 👤 K Fukui
- 👤 T Mortimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:40
CPC Classifications
D; D06; D06M; D06M17/00; D06M17/04; D06M17/06; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/2893; Y10T442/30; Y10T442/3854; Y10T442/387; Y10T442/60; Y10T442/674; Y10T442/676
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN A FABRIC INTERLINING WITH TERPOLYMERIC RESIN AS A THERMOPLASTIC ADHESIVE, THE IMPROVEMENT WHEREIN 100% OF THE TERPOLYMER CONSISTS OF 3 TO 30% BY WEIGHT STYRENE, 20 TO 40% BY WEIGHT ACRYLONITRILE, 20 TO 77% BY WEIGHT ALKYLACRYLATE HAVING C1-C4 ALKYL RADICAL, SAID TERPOLYMER HAVING AN INTRINSIC VISCOSITY IN THE RANGE BETWEEN 0.3 AND 0.7 DL./G. DETERMINED IN DIMETHYLFORMAMIDE AT 30*C. AND MELTING IN THE RANGE OF 60 TO 150*C.
Claim 2
Dependent Claim
70 words
IN A FABRIC INTERLINING WITH TERPOLYMERIC RESIN AS A THERMOPLASTIC ADHESIVE, THE IMPROVEMENT WHEREIN 100% OF THE TERPOLYMER CONSISTS OF 3 TO 30% BY WEIGHT STYRENE, 20 TO 40% BY WEIGHT ACRYLONITRILE, 20 TO 77% BY WEIGHT ALKYLACRYLATE HAVING C1-C4 ALKYL RADICAL, SAID TERPOLYMER HAVING AN INTRINSIC VISCOSITY IN THE RANGE BETWEEN 0.3 AND 0.7 DL./G. DETERMINED IN DIMETHYLFORMAMIDE AT 30*C. AND MELTING IN THE RANGE OF 60 TO 150*C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |