Patent US250137A successfully refreshed from Google Patents.
Patent US4384018A successfully refreshed from Google Patents.
US4384018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary carpet backing fabric
Assignee: CREDITANSTALT-BANKVEREIN
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Filing: 1982-01-25
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Granted: 1983-05-17
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Expires: 2002-01-25
Abstract
Abstract An improved woven synthetic textile fabric is formed by using an entangled combination of a fibrillated slit film yarn and a multi-filament yarn as at least one of the warp and fill members. The fabric is characterized by the look and feel of a jute fabric and may be employed as a woven cloth to manufacture bags, bale wrap, wall covering, drapes and the like or, preferably, to produce secondary backing fabric for tufted carpets which exhibits enhanced adhesion characteristics as compared to prior art synthetic secondary backing materials.
Inventors
- 👤 Donald Caswell
- 👤 David J. Stout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:23
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0081; D06N2201/00; D06N2201/02; D06N2201/0245; D06N2201/0254; D06N2201/0263; D06N2201/12; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/249921; Y10T428/249922; Y10T442/00; Y10T442/30; Y10T442/3033; Y10T442/3041
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
55 words
A woven secondary backing material comprising warp members and fill members, one of said warp and fill members comprising unfibrillated or substantially unfibrillated synthetic ribbons, the other of said warp and fill members comprising heavily fibrillated synthetic ribbon entangled with continuous, multi-filament synthetic yarn, said backing characterized by a delamination strength greater than 15 pounds.
Claim 2
Dependent Claim
55 words
A woven secondary backing material comprising warp members and fill members, one of said warp and fill members comprising unfibrillated or substantially unfibrillated synthetic ribbons, the other of said warp and fill members comprising heavily fibrillated synthetic ribbon entangled with continuous, multi-filament synthetic yarn, said backing characterized by a delamination strength greater than 15 pounds.
Claim 3
Dependent Claim
44 words
The synthetic fabric of claim 1, wherein the other of the warp and fill members comprises unfibrillated or substantially unfibrillated ribbons of polyolefin, polyamide, polyester or mixtures thereof, said ribbons being from 0.5 to 4 mils thick and from 30 to 120 mils wide.
Claim 4
Dependent Claim
21 words
The secondary backing of claim 1, wherein said heavily fibrillated yarn is a polyefin and said multi-filament yarn is a polyamide.
Claim 5
Dependent Claim
79 words
The second backing of claim 3, wherein said unfibrillated or substantially unfibrillated ribbons are from 0.5 to 4 mils thick and from 30 to 120 mils wide, the fibrils in said heavily fibrillated polyolefin ribbon are from 3 to 235 denier and have an average denier of from about 12 to about 150, and the multi-filament yarn has a total denier of about 150 to 1000 and a denier per filament in the range of from 2 to 50.
Claim 6
Dependent Claim
14 words
The fabric of claim 1, where the fibrillated and unfribillated synthetic ribbons are polypropylene.
Claim 7
Dependent Claim
21 words
The fabric of claim 1, wherein said multi-filament yarns are selected from the group consisting of polyolefins, polyesters, acrylics and polyamides.
Claim 8
Dependent Claim
13 words
The fabric of claim 1, wherein said multi-filament synthetic yarn is a polyamide.
Claim 9
Dependent Claim
109 words
A woven secondary backing material comprising warp members and fill members, one of said warp and fill members comprising unfibrillated or substantially unfibrillated synthetic ribbons, said unfibrillated ribbons being from 0.5 to 4 mils thick and from 30 to 120 mils wide, the other of said warp and fill members comprising heavily fibrillated polyolefin ribbon entangled with continuous, multi-filament polyamide yarn, said polyolefin ribbon having a denier of from 3 to 235 and an average denier of from about 12 to about 150 and said polyamide yarn having a total denier of about 150 to 1,000 and a denier per filament in the range of from 2 to 50.
Claim 10
Dependent Claim
109 words
A woven secondary backing material comprising warp members and fill members, one of said warp and fill members comprising unfibrillated or substantially unfibrillated synthetic ribbons, said unfibrillated ribbons being from 0.5 to 4 mils thick and from 30 to 120 mils wide, the other of said warp and fill members comprising heavily fibrillated polyolefin ribbon entangled with continuous, multi-filament polyamide yarn, said polyolefin ribbon having a denier of from 3 to 235 and an average denier of from about 12 to about 150 and said polyamide yarn having a total denier of about 150 to 1,000 and a denier per filament in the range of from 2 to 50.
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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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |