Patent US3020168A successfully refreshed from Google Patents.
US3020168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven fabrics with a fabric-like appearance
Assignee: Johns Manville Corp
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Filing: 1958-05-09
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Granted: 1962-02-06
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Expires: 1978-05-09
Abstract
No abstract record available.
Inventors
- 👤 Gouveia A Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:46
CPC Classifications
D; D06; D06Q; D06Q1/00; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD FOR TREATING A NONWOVEN FABRIC TO IMPART A FABRIC-LIKE APPEARANCE THERETO WHICH COMPRISES POSITIONING THE NONWOVEN FABRIC BETWEEN THE UPPER REACH OF ONE ENDLESS SCREEN AND THE LOWER REACH OF ANOTHER ENDLESS SCREEN, MOVING THE ADJACENT REACHES OF SAID ENDLESS SCREENS AND SAID NONWOVEN FABRIC IN THE SAME PREDETERMINED DIRECTION, APPLYING A FLUID FILM FORMING SUBSTANCE TO IMPREGNATE SAID NONWOVEN FABRIC WHILE BETWEEN SAID SCREENS, JPASSING SAID SCREEN S AND SAID IMPREGNATED NONWOVEN FABRIC BY APPLYING A PREDETERMINED PRESSURE TO ROLLS, APPLYING VARYING AMOUNTS OF PRESSURE TO SAID NONWOVEN FABRIC BY APPLYING A PREDETERMINED PRESSURE TO SAID ROLLS SO THAT WHEN TRANSMITTED THROUGH SAID SCREENS SAID IMPREGNATED NONWOVEN FABRIC IS SUBJECTED TO VARYING AMOUNTS OF PRESSURE AND SO THAT SAID FLUID FILM FORMING SUBSTANCES IS DISTRIBUTED IN VARYING CONCENTRATIONS THROUGH OUT SAID NONWOVEN FABRIC.
Claim 2
Independent Claim
136 words
A METHOD FOR TREATING A NONWOVEN FABRIC TO IMPART A FABRIC-LIKE APPEARANCE THERETO WHICH COMPRISES POSITIONING THE NONWOVEN FABRIC BETWEEN THE UPPER REACH OF ONE ENDLESS SCREEN AND THE LOWER REACH OF ANOTHER ENDLESS SCREEN, MOVING THE ADJACENT REACHES OF SAID ENDLESS SCREENS AND SAID NONWOVEN FABRIC IN THE SAME PREDETERMINED DIRECTION, APPLYING A FLUID FILM FORMING SUBSTANCE TO IMPREGNATE SAID NONWOVEN FABRIC WHILE BETWEEN SAID SCREENS, JPASSING SAID SCREEN S AND SAID IMPREGNATED NONWOVEN FABRIC BY APPLYING A PREDETERMINED PRESSURE TO ROLLS, APPLYING VARYING AMOUNTS OF PRESSURE TO SAID NONWOVEN FABRIC BY APPLYING A PREDETERMINED PRESSURE TO SAID ROLLS SO THAT WHEN TRANSMITTED THROUGH SAID SCREENS SAID IMPREGNATED NONWOVEN FABRIC IS SUBJECTED TO VARYING AMOUNTS OF PRESSURE AND SO THAT SAID FLUID FILM FORMING SUBSTANCES IS DISTRIBUTED IN VARYING CONCENTRATIONS THROUGH OUT SAID NONWOVEN FABRIC.
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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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |