US3100733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric sheet material and method of making same
Assignee: EIDP Inc
•
Filing: 1959-01-19
•
Granted: 1963-08-13
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Bundy Robert Wendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:06
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0086; Y; Y10; Y10S; Y10S264/00; Y10S264/75
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A LEATHER-LIKE, FLEXIBLE, MOISTURE-PERMEABLE POLYMERIC SHEET MATERIAL COMPRISING (A) A LAYER WHICH CONTAINS FIBRIDS IN INTIMATELY INTERLACED MATTED FORM, SAID LAYER HAVING A FIBRID CONTENT OF 50-100 WEIGHT PERCENT AND A COMPLEMENTARY NON-ADHESIVE STAPLE FIBER CONTENT OF UP TO ABOUT 50 WEIGHT PERCENT; (B) AN EXPOSED SURFACE OF SAID LAYER BEING MICROPOROUS AND RELATIVELY SMOOTH AND DENSE, THE FIBRIDS THEREIN BEING INTEGRALLY JOINED TO ONE ANOTHER, AND AT LEAST 51 WEIGHT PERCENT OF THE FIBRIDS THEREIN BEING COMPOSED OF A POLYMER HAVING AN INITIAL MODULUS BELOW 0.9 GRAM PER DENIER; (C) THE OTHER SURFACE OF SAID LAYER BEING SUBSTANTIALLY LESS SMOOTH AND DENSE THAN SAID EXPOSED SURFACE, AND THE FIBRIDS THEREIN BEING SUBSTANTIALLY DISCRETE.
Claim 2
Dependent Claim
114 words
A LEATHER-LIKE, FLEXIBLE, MOISTURE-PERMEABLE POLYMERIC SHEET MATERIAL COMPRISING (A) A LAYER WHICH CONTAINS FIBRIDS IN INTIMATELY INTERLACED MATTED FORM, SAID LAYER HAVING A FIBRID CONTENT OF 50-100 WEIGHT PERCENT AND A COMPLEMENTARY NON-ADHESIVE STAPLE FIBER CONTENT OF UP TO ABOUT 50 WEIGHT PERCENT; (B) AN EXPOSED SURFACE OF SAID LAYER BEING MICROPOROUS AND RELATIVELY SMOOTH AND DENSE, THE FIBRIDS THEREIN BEING INTEGRALLY JOINED TO ONE ANOTHER, AND AT LEAST 51 WEIGHT PERCENT OF THE FIBRIDS THEREIN BEING COMPOSED OF A POLYMER HAVING AN INITIAL MODULUS BELOW 0.9 GRAM PER DENIER; (C) THE OTHER SURFACE OF SAID LAYER BEING SUBSTANTIALLY LESS SMOOTH AND DENSE THAN SAID EXPOSED SURFACE, AND THE FIBRIDS THEREIN BEING SUBSTANTIALLY DISCRETE.
References Cited (Backward Citations)
US2253000A
Cited
US2357392A
Cited
GB578156A
Cited
US2438156A
Cited
US2476283A
Cited
US2497117A
Cited
US2689199A
Cited
US2891279A
Cited
US2813776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |