US3218381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making apertured non-woven fabric
Assignee: Kendall Co
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Filing: 1963-02-15
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Granted: 1965-11-16
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Expires: 1983-02-15
Abstract
No abstract record available.
Inventors
- 👤 John J Such
- 👤 Preston F Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:36
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE PROCESS FOR MAKING AN APERTURED NON-WOVEN FABRIC WHICH COMPRISES FORMING A WEB OF RETRACTABLE TEXTILE-LENGTH FIBERS, IMPALING SAID WEB ON A SET OF PINS TO PERFORATE AND RESTRAIN SAID WEB, AND SUBJECTING SAID WEB TO A PROCESS CAUSING THE FIBERS TO RETRACT WHILE PREVENTING ANY SUBSTANTIAL OVER-ALL SHRINKAGE OF SAID WEB AND DISCONTINUING THE RETRACING OPEATION WHILE THE FIBERS ARE STILL HELD UNDER RESTRAINT, WHEREBY THE FIBERS ARE RETRACTED IN TENSIONED FORM AROUND THE PERIPHERIES OF SAID PINS TO FORM AN APERTURED NON-WOVEN FABRIC WITH REINFORCED APERTURES.
Claim 2
Dependent Claim
88 words
THE PROCESS FOR MAKING AN APERTURED NON-WOVEN FABRIC WHICH COMPRISES FORMING A WEB OF RETRACTABLE TEXTILE-LENGTH FIBERS, IMPALING SAID WEB ON A SET OF PINS TO PERFORATE AND RESTRAIN SAID WEB, AND SUBJECTING SAID WEB TO A PROCESS CAUSING THE FIBERS TO RETRACT WHILE PREVENTING ANY SUBSTANTIAL OVER-ALL SHRINKAGE OF SAID WEB AND DISCONTINUING THE RETRACING OPEATION WHILE THE FIBERS ARE STILL HELD UNDER RESTRAINT, WHEREBY THE FIBERS ARE RETRACTED IN TENSIONED FORM AROUND THE PERIPHERIES OF SAID PINS TO FORM AN APERTURED NON-WOVEN FABRIC WITH REINFORCED APERTURES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |