US3067483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet material and process of making same
Assignee: EIDP Inc
•
Filing: 1959-08-24
•
Granted: 1962-12-11
•
Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Hollowell Joseph Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:38
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; D04H1/04; D04H1/06; D04H1/58; D04H1/587; D04H1/64; Y; Y10; Y10S; Y10S264/00; Y10S264/13; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/23986; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A FLEXIBLE MOISTURE-PERMEABLE SHEET MATERIAL WHICH COMPRISES A LIGATED FIBROUS MAT COMPRISING IN STU-RETRACTED SYNTHETIC ORGANIC FIBERS, SAID MAT HAVING BEEN SHRUNK ABOUT 30% TO 90% OF ITS ORIGINAL PLANAR AREA AND DISPERSED THROUGHOUT SAID MAT 10-70% OF A POLYMERIC IMPREGNANT BASED ON THE COMBINED WEIGHT OF FIBERS AND SAID IMPREGNANT, SAID IMPREGNANT BEING IN A MICROPOROUS FORM WHICH HAS A TENSILE STRESS AT 5% ELONGATION OF 5 TO 150 POUNDS PER SQUARE INCH, SAID SHEET MATERIAL HAVING A BENDING STIFFNESS OF 1.0 TO 65.0 P.S.I. AS DETERMINED BY THE CANTILEVER TEST IN ASTM D1388-55T.
Claim 2
Dependent Claim
95 words
A FLEXIBLE MOISTURE-PERMEABLE SHEET MATERIAL WHICH COMPRISES A LIGATED FIBROUS MAT COMPRISING IN STU-RETRACTED SYNTHETIC ORGANIC FIBERS, SAID MAT HAVING BEEN SHRUNK ABOUT 30% TO 90% OF ITS ORIGINAL PLANAR AREA AND DISPERSED THROUGHOUT SAID MAT 10-70% OF A POLYMERIC IMPREGNANT BASED ON THE COMBINED WEIGHT OF FIBERS AND SAID IMPREGNANT, SAID IMPREGNANT BEING IN A MICROPOROUS FORM WHICH HAS A TENSILE STRESS AT 5% ELONGATION OF 5 TO 150 POUNDS PER SQUARE INCH, SAID SHEET MATERIAL HAVING A BENDING STIFFNESS OF 1.0 TO 65.0 P.S.I. AS DETERMINED BY THE CANTILEVER TEST IN ASTM D1388-55T.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |