Patent US3236718A successfully refreshed from Google Patents.
US3236718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating webs and product resulting therefrom
Assignee: Samcoe Holding Corp
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Filing: 1958-07-15
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Granted: 1966-02-22
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Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Cohn Joseph
- 👤 Cohn Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:19
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/76; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
THE METHOD OF TREATING NON-WOVEN FIBROUS WEB MATERIAL HAVING THEREIN A HEAT-SETTABLE SUBSTANCE, WHICH COMPRISES FEEDING A WEB OF SAID MATERIAL AT A FIRST SPEED TOWARD A SURFACE TRAVELLING AT A SECOND AND SLOWER SPEED, PASSING SAID MATERIAL THROUGH A DECELERATION ZONE OF PREDETERMINED LENGTH IMMEDIATELY PRIOR TO BRINGING SAID MATERIAL INTO CONTACT WITH SAID SURFACE, SAID FIRST AND SECOND SPEEDS BEING SUCH, IN RELATION TO THE LENGTH OF SAID ZONE, AS TO CAUSE CRIMPS OR PLEATS TO BE FORMED IN SAID WEB MATERIAL, AND APPLYING HEAT AND ROLLING PRESSURE TO OPPOSED PRINCIPAL SURFACES OF SAID MATERIAL AS IT LEAVES SAID ZONE OF DECELERATION, THE HEAT AND PRESSURE APPLIED TO SAID MATERIAL BEING SUFFICIENT, RELATIVE TO THE MATERIAL AND THE HEATSETTABLE SUBSTANCE, TO EFFECT AT LEAST A SEMI-PERMANENT SET OF THE CRIMPS OR PLEATS IN THE MATERIAL, WHEREBY THE TREATED MATERIAL ASSUMES AT LEAST A SEMI-PERMANENT IMBRICATE APPEARANCE AND HAS SUBSTANTIAL ELASTICITY IN THE LONGITUDINAL DIRECTION.
Claim 2
Independent Claim
156 words
THE METHOD OF TREATING NON-WOVEN FIBROUS WEB MATERIAL HAVING THEREIN A HEAT-SETTABLE SUBSTANCE, WHICH COMPRISES FEEDING A WEB OF SAID MATERIAL AT A FIRST SPEED TOWARD A SURFACE TRAVELLING AT A SECOND AND SLOWER SPEED, PASSING SAID MATERIAL THROUGH A DECELERATION ZONE OF PREDETERMINED LENGTH IMMEDIATELY PRIOR TO BRINGING SAID MATERIAL INTO CONTACT WITH SAID SURFACE, SAID FIRST AND SECOND SPEEDS BEING SUCH, IN RELATION TO THE LENGTH OF SAID ZONE, AS TO CAUSE CRIMPS OR PLEATS TO BE FORMED IN SAID WEB MATERIAL, AND APPLYING HEAT AND ROLLING PRESSURE TO OPPOSED PRINCIPAL SURFACES OF SAID MATERIAL AS IT LEAVES SAID ZONE OF DECELERATION, THE HEAT AND PRESSURE APPLIED TO SAID MATERIAL BEING SUFFICIENT, RELATIVE TO THE MATERIAL AND THE HEATSETTABLE SUBSTANCE, TO EFFECT AT LEAST A SEMI-PERMANENT SET OF THE CRIMPS OR PLEATS IN THE MATERIAL, WHEREBY THE TREATED MATERIAL ASSUMES AT LEAST A SEMI-PERMANENT IMBRICATE APPEARANCE AND HAS SUBSTANTIAL ELASTICITY IN THE LONGITUDINAL DIRECTION.
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |