US3870591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimensionally stable, flexible plastic surface coverings
Assignee: Armstrong World Industries Inc
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Filing: 1974-01-25
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Granted: 1975-03-11
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Expires: 1994-01-25
Abstract
Abstract A flexible, dimensionally stable plastic surface covering having a non-foamed poly(vinyl chloride) layer containing cross-linked polymer positioned between two foamed poly(vinyl chloride) layers, and having a wear resistant top coat on the surface of the system. One or more of the foamed surfaces may be embossed, and the top foamed surface may carry a printed decoration thereon.
Inventors
- 👤 Jack H Witman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/10; C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0007; D06N7/0013; D06N7/0039; D06N7/0047; Y; Y10; Y10S; Y10S273/00; Y10S273/05; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24521; Y10T428/24595; Y10T428/24942; Y10T428/24992; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/249987; Y10T428/249988
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
33 words
A FLEXIBLE, DIMENSIONALLY STABLE, PLASTIC SURFACE COVERING COMPRISING UPPER AND LOWER FOAMED VINYL RESIN LAYERS, AN UNFOAMED, INTERMEDIATE, REINFORCING LAYER OF VINYL RESIN CONTAINING, POLYMERIZED CROSS-LINKED MONOMER, AND A VINYL RESIN TOP COAT.
Claim 2
Dependent Claim
33 words
A FLEXIBLE, DIMENSIONALLY STABLE, PLASTIC SURFACE COVERING COMPRISING UPPER AND LOWER FOAMED VINYL RESIN LAYERS, AN UNFOAMED, INTERMEDIATE, REINFORCING LAYER OF VINYL RESIN CONTAINING, POLYMERIZED CROSS-LINKED MONOMER, AND A VINYL RESIN TOP COAT.
Claim 3
Dependent Claim
33 words
A flexible, dimensionally stable, plastic surface covering comprising upper and lower foamed vinyl resin layers, an unfoamed, intermediate, reinforcing layer of vinyl resin containing, polymerized cross-linked monomer, and a vinyl resin top coat.
Claim 4
Dependent Claim
33 words
A flexible, dimensionally stable, plastic surface covering comprising upper and lower foamed vinyl resin layers, an unfoamed, intermediate, reinforcing layer of vinyl resin containing, polymerized cross-linked monomer, and a vinyl resin top coat.
Claim 5
Dependent Claim
13 words
The product according to claim 1 wherein the vinyl resin is poly(vinyl chloride).
Claim 6
Dependent Claim
19 words
The product according to claim 1 wherein the upPer and lower foamed vinyl resin layers are of different densities.
Claim 7
Dependent Claim
57 words
A chemically embossed, flexible, dimensionally stable plastic surface covering comprising a first foamed poly(vinyl chloride) resin base layer, an unfoamed reinforcing poly(vinyl chloride) layer containing polymerized, cross-linked monomer formed on said base layer, a second foamed poly(vinyl chloride) resin layer formed on said unfoamed layer and having predetermined embossed areas therein and a vinyl resin top coat.
Claim 8
Dependent Claim
57 words
A chemically embossed, flexible, dimensionally stable plastic surface covering comprising a first foamed poly(vinyl chloride) resin base layer, an unfoamed reinforcing poly(vinyl chloride) layer containing polymerized, cross-linked monomer formed on said base layer, a second foamed poly(vinyl chloride) resin layer formed on said unfoamed layer and having predetermined embossed areas therein and a vinyl resin top coat.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |