US3085922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous flexible self-supporting sheet material and method of making same
Assignee: EIDP Inc
•
Filing: 1959-01-19
•
Granted: 1963-04-16
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Koller Charles Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/74; D04H11/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T156/12; Y10T156/13; Y10T428/00; Y10T428/23907; Y10T428/23914; Y10T428/23957; Y10T428/23979
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
69 words
A POROUS, FLEXIBLE, SELF-SUPPORTING SHEET MATERIAL COMPRISING SUBSTANTIALLY PARALLELIZED CRIMPED FILAMENTARY PILE MEMBERS OF SYNTHETIC ORGANIC POLYMER, THE SAID MEMBERS BEING DISTRIBUTED THROUGHOUT THE SHEET MATERIAL AND BEING ATTACHED AT A PLURALITY OF CONTACT POINTS THROUGHOUT THE THREE DIMENSIONS OF THE SHEET MATERIAL, THE FACES OF THE SHEET MATERIAL BEING COMPOSED ESSENTIALLY OF FIBER ENDS AND THE AIR WITHIN SAID SHEET CONSTITUTING AT LEAST ABOUT 50% OF ITS VOLUME.
Claim 2
Dependent Claim
69 words
A POROUS, FLEXIBLE, SELF-SUPPORTING SHEET MATERIAL COMPRISING SUBSTANTIALLY PARALLELIZED CRIMPED FILAMENTARY PILE MEMBERS OF SYNTHETIC ORGANIC POLYMER, THE SAID MEMBERS BEING DISTRIBUTED THROUGHOUT THE SHEET MATERIAL AND BEING ATTACHED AT A PLURALITY OF CONTACT POINTS THROUGHOUT THE THREE DIMENSIONS OF THE SHEET MATERIAL, THE FACES OF THE SHEET MATERIAL BEING COMPOSED ESSENTIALLY OF FIBER ENDS AND THE AIR WITHIN SAID SHEET CONSTITUTING AT LEAST ABOUT 50% OF ITS VOLUME.
Claim 3
Dependent Claim
103 words
A NOVEL PROCESS COMPRISING FORMING CRIMPED SYNTHETIC ORGANIC POLYMERIC FILAMENTARY STRUCTURES INTO A BODY OF SUBSTANTIALLY PARALLELIZED FILAMENTARY STRUCTURES, CUTTING STRIPS FROM SAID BODY AT AN ANGLE TRANSVERSE TO SAID STRUCTURES, ASSEMBLING THE STRIPS INTO A BLOCK SO THAT THE FILAMENTARY STRUCTURES ARE SUBSTANTIALLY PARALLELIZED, ATTACHING THE FILAMENTARY STRUCTURES WITH A BINDER COMPOSITION AT SPACED CONTACT POINTS THROUGHOUT THE THREE DIMENSIONS OF THE BLOCK, AND CUTTING THE BLOCK AT AN ANGLE TRANSVERSE TO THE PARALLELIZED FIBERS SO THAT THE RESULTING SHEET-LIKE ARTICLE CONTAINS SUBSTANIALLY PARALLELIZED FILAMENTARY STRUCTURES ORIENTED AT AN ANGLE OF AT LEAST ABOUT 10* TO THE PLANE OF THE CUTTING SURFACE.
Claim 4
Dependent Claim
103 words
A NOVEL PROCESS COMPRISING FORMING CRIMPED SYNTHETIC ORGANIC POLYMERIC FILAMENTARY STRUCTURES INTO A BODY OF SUBSTANTIALLY PARALLELIZED FILAMENTARY STRUCTURES, CUTTING STRIPS FROM SAID BODY AT AN ANGLE TRANSVERSE TO SAID STRUCTURES, ASSEMBLING THE STRIPS INTO A BLOCK SO THAT THE FILAMENTARY STRUCTURES ARE SUBSTANTIALLY PARALLELIZED, ATTACHING THE FILAMENTARY STRUCTURES WITH A BINDER COMPOSITION AT SPACED CONTACT POINTS THROUGHOUT THE THREE DIMENSIONS OF THE BLOCK, AND CUTTING THE BLOCK AT AN ANGLE TRANSVERSE TO THE PARALLELIZED FIBERS SO THAT THE RESULTING SHEET-LIKE ARTICLE CONTAINS SUBSTANIALLY PARALLELIZED FILAMENTARY STRUCTURES ORIENTED AT AN ANGLE OF AT LEAST ABOUT 10* TO THE PLANE OF THE CUTTING SURFACE.
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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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |