Patent US3336244A successfully refreshed from Google Patents.
US3336244A
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US
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Porous product prepared by sintering a mixture of a polyolefin, a thermosetting resin and a different thermoplastic resin
Assignee: Day International Corp
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Filing: 1964-04-28
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Granted: 1967-08-15
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Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 Rockoff Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:39
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/12; C; C08; C08J; C08J9/00; C08J9/24; Y; Y10; Y10S; Y10S521/00; Y10S521/919; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PRINTING MEMBER COMPRISING A SINTERED MASS OF SYNTHETIC PLASTIC MATERIAL SAID MASS HAVING A RETICULATD OPEN PORE STRUCTURE WHEREIN SAID PORES ARE INTERCONNECTED AND CONSTITUTE BETWEEN ABOUT 10% AND 40% BY VOLUME OF SAID MASS, SAID MASS OF PLASTIC MATGERIAL COMPRISING AS ESSENTIAL INGREDIENTS BETWEEN 10% AND 50% BY WEIGHT OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYPROPYLENE HAVING A SPECIFIC GRAVITY IN THE RANG OF 0.89 TO 0.91 AND HAVING A MELT FLOW RANGE OF 1 TO 20 AND POLYETHYLENE HAVING A MOLECULAR WEIGHT BETWEEN 1 AND 3 MILLION, AND BETWEEN 25% AND 95% OF A THERMOSETTING RESIN AND BETWEEN 30% AND 50% BY WEIGHT OF A THERMOPLASTIC RESIN DIFFERENT FROM SAID POLYMER, AND SAID PRINTING MEMBER CONTAINING BETWEEN 1% AND 50% BY WEIGHT OF A PIGMENTED INK.
Claim 2
Dependent Claim
132 words
A PRINTING MEMBER COMPRISING A SINTERED MASS OF SYNTHETIC PLASTIC MATERIAL SAID MASS HAVING A RETICULATD OPEN PORE STRUCTURE WHEREIN SAID PORES ARE INTERCONNECTED AND CONSTITUTE BETWEEN ABOUT 10% AND 40% BY VOLUME OF SAID MASS, SAID MASS OF PLASTIC MATGERIAL COMPRISING AS ESSENTIAL INGREDIENTS BETWEEN 10% AND 50% BY WEIGHT OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYPROPYLENE HAVING A SPECIFIC GRAVITY IN THE RANG OF 0.89 TO 0.91 AND HAVING A MELT FLOW RANGE OF 1 TO 20 AND POLYETHYLENE HAVING A MOLECULAR WEIGHT BETWEEN 1 AND 3 MILLION, AND BETWEEN 25% AND 95% OF A THERMOSETTING RESIN AND BETWEEN 30% AND 50% BY WEIGHT OF A THERMOPLASTIC RESIN DIFFERENT FROM SAID POLYMER, AND SAID PRINTING MEMBER CONTAINING BETWEEN 1% AND 50% BY WEIGHT OF A PIGMENTED INK.
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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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |