US3147698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressible material for use in printing
Assignee: WR Grace and Co
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Filing: 1960-11-18
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Granted: 1964-09-08
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Expires: 1980-11-18
Abstract
No abstract record available.
Inventors
- 👤 William C Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:34
CPC Classifications
B; B41; B41N; B41N10/00; B41N10/02; B41N10/04; B41N2210/00; B41N2210/04; B41N2210/14; Y; Y10; Y10S; Y10S428/00; Y10S428/909; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/2852; Y10T428/2857; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
A BLANKET FOR LITHOGRAPHIC PRINTING WHICH INCLUDES A SUBSTANTIALLY NON-EXTENSIBLE BACKING MEMBER AND A RESILIENT, COMPRESSIBLE REPLACEABLE UNIT REMOVABLY ADHERED THERETO, THE REPLACEABLE UNIT BEING COMPOSED OF A HIGHLY POROUS FELTED FIBROUS SHEET IMPREGNATED WITH AN ELASTOMERIC MATERIAL, THE IMPREGNATED SHEET HAVING A FIRMNESS SUCH THAT A PRESSURE OF AT LEAST ABOUT 10 POUNDS PER SQUARE INCH MUST BE EXERTED ON THE SHEET OF EFFECT AN INITIAL COMPRESSION OF 2 MILS, AND A RESIDUAL POROSITY AT 4 MILS COMPRESSION OF AT LEAST ABOUT 37 PERCENT; AND A THIN SURFACE LAYER ON SAID IMPREGNATED SHEET CAPABLE OF RECEIVING AND TRANSFERRING A PRINTED IMAGE.
References Cited (Backward Citations)
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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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |