Patent US4048368A successfully refreshed from Google Patents.
US4048368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated substrate for an offset printing blanket
Assignee: Wellington Sears Co
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Filing: 1976-04-19
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Granted: 1977-09-13
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Expires: 1996-04-19
Abstract
Abstract A woven fabric including fibers of high strength and low elongation extending in the warp direction, is laminated to a non-woven mat which is saturated with a latex. The exposed surface of the resultant laminate is buffed to insure precise dimensional thickness.
Inventors
- 👤 Ferrell Daniel Hale
- 👤 Charles H. Crowder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:28
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/14; B32B5/02; B32B5/022; B32B5/024; B32B5/06; B32B7/00; B32B7/04; B32B7/12; B41; B41N; B41N10/00; B41N10/02; B41N10/04; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/0269; B32B2262/0276; B32B2305/00; B32B2305/10; B32B2305/20; B41N2210/00; B41N2210/06; B41N2210/14; Y; Y10; Y10S; Y10S428/00; Y10S428/909; Y10T; Y10T442/00; Y10T442/30; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/326; Y10T442/3276; Y10T442/3707; Y10T442/3724; Y10T442/3764
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
57 words
A substrate for an offset printing blanket comprising: a woven fabric including spun warp fibers formed from an aromatic polyamide and fill fibers made of polyester, said warp fibers having a tensile stength at least in the order of four times that of cotton; and a needle-punched non-woven mat laminated to said woven fabric by an adhesive.
Claim 2
Dependent Claim
57 words
A substrate for an offset printing blanket comprising: a woven fabric including spun warp fibers formed from an aromatic polyamide and fill fibers made of polyester, said warp fibers having a tensile stength at least in the order of four times that of cotton; and a needle-punched non-woven mat laminated to said woven fabric by an adhesive.
Claim 3
Dependent Claim
27 words
A substrate as set forth in claim 1, wherein said fabric further includes a stabilizer applied to the fabric with the warp fibers in a stretched position.
Claim 4
Dependent Claim
18 words
A substrate as set forth in claim 2 wherein said non-woven mat is saturated by a latex binder.
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) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |