Patent US3245942A successfully refreshed from Google Patents.
US3245942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor permeable, waterproof coatings containing pigments, isocyanate and vinyl terpolymer
Assignee: EIDP Inc
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Filing: 1961-08-24
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Granted: 1966-04-12
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Expires: 1981-08-24
Abstract
No abstract record available.
Inventors
- 👤 Limperos George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:04
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6275; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C08L; C08L75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A COATED FABRIC BEARING FROM 1.5-6 OZ. PER SQUARE YARD OF FABRIC, OF A COMPOSITION CONSISTING ESSENTIALLY OF A VINYL TERPOLYMER OF ABOUT 85% BY WEIGHT OF VINYL CHLORIDE, ABOUT 13% BY WEIGHT OF VINYL ACETATE, AND ABOUT 1.0% BY WEIGHT OF MALEIC ACID AND FROM ABOUT 100-250 PARTS BY WEIGHT OF A PIGMENT SELECTED FROM THE GROUP CONSISTING OF TITANIUM DIOXIDE AND ANTIMONY OXIDE PER 100 PARTS OF RESIN, SAID PIGMENT PARTICLES BEING UNDER 325 MESH, A MOLAR AMOUNT OF METHYLENE BIS (4-PHENYLISOCYANATE) EQUAL TO THE NUMBER OF FREE CARBOXYL GROUPS IN THE RESIN, THE SURFACE OF SAID POLYMER COATING HAVING PORES OF A DIAMETER BETWEEN 30 AND 120 MICRONS.
Claim 2
Dependent Claim
111 words
A COATED FABRIC BEARING FROM 1.5-6 OZ. PER SQUARE YARD OF FABRIC, OF A COMPOSITION CONSISTING ESSENTIALLY OF A VINYL TERPOLYMER OF ABOUT 85% BY WEIGHT OF VINYL CHLORIDE, ABOUT 13% BY WEIGHT OF VINYL ACETATE, AND ABOUT 1.0% BY WEIGHT OF MALEIC ACID AND FROM ABOUT 100-250 PARTS BY WEIGHT OF A PIGMENT SELECTED FROM THE GROUP CONSISTING OF TITANIUM DIOXIDE AND ANTIMONY OXIDE PER 100 PARTS OF RESIN, SAID PIGMENT PARTICLES BEING UNDER 325 MESH, A MOLAR AMOUNT OF METHYLENE BIS (4-PHENYLISOCYANATE) EQUAL TO THE NUMBER OF FREE CARBOXYL GROUPS IN THE RESIN, THE SURFACE OF SAID POLYMER COATING HAVING PORES OF A DIAMETER BETWEEN 30 AND 120 MICRONS.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |