US3271216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of loop pile textiles
Assignee: EIDP Inc
•
Filing: 1963-01-22
•
Granted: 1966-09-06
•
Expires: 1983-01-22
Abstract
No abstract record available.
Inventors
- 👤 Koller Charles Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:45
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/102; Y10T156/1025; Y10T156/1052; Y10T156/1059; Y10T428/00; Y10T428/23907; Y10T428/23957; Y10T428/23964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
METHOD FOR THE PRODUCTION OF A POROUS SELF-SUPPORTING SHEET MATERIAL COMPRISING (A) PROVIDING ONE OR MORE FIBROUS BUNDLES EACH COMPOSED OF A PLURALITY OF CONTORTED FILAMENTARY STRUCTURES WHICH ARE OVERLAPPING AND INTERCONTACTING THROUGHOUT THE THREE DIMENSIONS OF THE BUNDLE, SAID FILAMENTARY STRUCTURES BEING ALIGNED GENERALLY IN THE SAME DIRECTION THROUGHOUT THE BUNDLE, (B) PLEATING SAID BUNDLES IN SIUSOIDAL CONFIGURATION TO PROVIDE A BODY HAVING A FIBER DENSITY BELOW 25 LBS./FT.3, WHEREIN FILAMENTARY STRUCTURES OF ADJACENT PLEATS OF THE BUNDLES OVERLAP ONE AOTHER, AND WHEREIN SAID BODY HAS TWO OPPOSING FACES DEFINED BY CLOSED CURVED PORTIONS OF SAID BUNDLES,
Claim 2
Dependent Claim
98 words
METHOD FOR THE PRODUCTION OF A POROUS SELF-SUPPORTING SHEET MATERIAL COMPRISING (A) PROVIDING ONE OR MORE FIBROUS BUNDLES EACH COMPOSED OF A PLURALITY OF CONTORTED FILAMENTARY STRUCTURES WHICH ARE OVERLAPPING AND INTERCONTACTING THROUGHOUT THE THREE DIMENSIONS OF THE BUNDLE, SAID FILAMENTARY STRUCTURES BEING ALIGNED GENERALLY IN THE SAME DIRECTION THROUGHOUT THE BUNDLE, (B) PLEATING SAID BUNDLES IN SIUSOIDAL CONFIGURATION TO PROVIDE A BODY HAVING A FIBER DENSITY BELOW 25 LBS./FT.3, WHEREIN FILAMENTARY STRUCTURES OF ADJACENT PLEATS OF THE BUNDLES OVERLAP ONE AOTHER, AND WHEREIN SAID BODY HAS TWO OPPOSING FACES DEFINED BY CLOSED CURVED PORTIONS OF SAID BUNDLES,
References Cited (Backward Citations)
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |