US2963381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous fabrics and methods for producing the same
Assignee: Heberlein Patent Corp
•
Filing: 1956-10-10
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Granted: 1960-12-06
•
Expires: 1976-10-10
Abstract
No abstract record available.
Inventors
- 👤 Leimbacher Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:41
CPC Classifications
D; D06; D06Q; D06Q1/00; D06M; D06M15/00; D06M15/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS WHICH COMPRISES APPLYING A NON-POROUS, WATER-REPELLENT ADHESIVE FILM TO A SUPPORTING FABRIC BASE FASHIONED OF SYNTHETIC, ORGANIC STRETCH THREADS, SAID FILM BEING SUBSTANTIALLY MORE FRANGIBLE THAN THE THREADS OF SAID FABRIC, STRETCHING THE BASE IN AT LEAST ONE DIRECTION TO BREAK THE APPLIED FILM WITHOUT SUBSTANTIALLY BREAKING THE BASE TO PRODUCE A PLURALITY OF GROOVES SUBSTANTIALLY NORMAL TO THE DIRECTION OF STRETCHING WHICH IMPART POROSITY TO THE FILM CARRYING FABRIC, AND SUBSEQUENTLY RELAXING THE FABRIC.
Claim 2
Dependent Claim
77 words
A PROCESS WHICH COMPRISES APPLYING A NON-POROUS, WATER-REPELLENT ADHESIVE FILM TO A SUPPORTING FABRIC BASE FASHIONED OF SYNTHETIC, ORGANIC STRETCH THREADS, SAID FILM BEING SUBSTANTIALLY MORE FRANGIBLE THAN THE THREADS OF SAID FABRIC, STRETCHING THE BASE IN AT LEAST ONE DIRECTION TO BREAK THE APPLIED FILM WITHOUT SUBSTANTIALLY BREAKING THE BASE TO PRODUCE A PLURALITY OF GROOVES SUBSTANTIALLY NORMAL TO THE DIRECTION OF STRETCHING WHICH IMPART POROSITY TO THE FILM CARRYING FABRIC, AND SUBSEQUENTLY RELAXING THE FABRIC.
References Cited (Backward Citations)
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Cited
US2533976A
Cited
US2627088A
Cited
US2757100A
Cited
GB741323A
Cited
US2772995A
Cited
US2779684A
Cited
US2792323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |