Patent DE313137C successfully refreshed from Google Patents.
Patent US4286003A successfully refreshed from Google Patents.
US4286003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin polyurethane foam backed rug
Assignee: Milliken Research Corp
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Filing: 1979-12-03
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Granted: 1981-08-25
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Expires: 1999-12-03
Abstract
Abstract An area rug having an upper loop or pile surface and a secondary backing having a thin, open cell urethane backing adhered thereto to lessen the tendency of the area rug to crawl on the undersurface while maintaining total thickness no greater than 10% greater than the thickness of the primary rug.
Inventors
- 👤 Kenneth B. Higgins
- 👤 Edgar H. Pittman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:50
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; B32B5/26; B32B27/00; B32B27/06; B32B27/08; B32B27/12; B32B5/18; D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0073; D06N7/0081; D06N7/0086; B32B2266/00; B32B2266/06; B32B2471/00; D06N2201/00; D06N2201/02; D06N2201/0263; D06N2203/00; D06N2203/02; D06N2203/022; D06N2203/04; D06N2203/041; D06N2203/042; D06N2203/045; D06N2203/047; D06N2203/06; D06N2203/061; D06N2203/068; D06N2209/00; D06N2209/10; D06N2209/106; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23993; Y10T428/249921; Y10T428/249953; Y10T428/249975
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
An area rug comprising: a carpet layer and a thin open-cell polyurethane material bonded to said carpet layer by an adhesive, said open-cell polyurethane material being of from 0.02 inches in thickness to 0.040 inches in thickness with a density of 1.75±0.30 pounds per cubic foot, said open-cell polyurethane having 70-45 pores per square inch and when slit having a plurality of substantially semicircular openings in the side thereof away from the pile surface of said carpet layer, said thin open-cell polyurethane material having a thickness of no more than 10% of the thickness of said carpet layer.
Claim 2
Dependent Claim
98 words
An area rug comprising: a carpet layer and a thin open-cell polyurethane material bonded to said carpet layer by an adhesive, said open-cell polyurethane material being of from 0.02 inches in thickness to 0.040 inches in thickness with a density of 1.75±0.30 pounds per cubic foot, said open-cell polyurethane having 70-45 pores per square inch and when slit having a plurality of substantially semicircular openings in the side thereof away from the pile surface of said carpet layer, said thin open-cell polyurethane material having a thickness of no more than 10% of the thickness of said carpet layer.
Claim 3
Dependent Claim
12 words
The area rug of claim 1 wherein said carpet layer is woven.
Claim 4
Dependent Claim
18 words
The area rug of claim 1 wherein said carpet layer is a pile fabric having a backing material.
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) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |