US3231376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithographic printing surface
Assignee: Harris Graphics Corp
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Filing: 1960-12-09
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Granted: 1966-01-25
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Expires: 1980-12-09
Abstract
No abstract record available.
Inventors
- 👤 Jack L Sorkin
- 👤 Daniel C Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:10
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/03; B41N3/038
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
182 words
A PROCESS OF BONDING A LIGHT-SENSITIVE MATERIAL TO A METAL SURFACE OF A SUPPORT MEMBER COMPRISING HYDROXYLATING THE METAL SURFACE, COATING THE HYDROXYLATED METAL SURFACE WITH A FILM OF A SOLUTION OF A METAL ESTER IN AN ORGANIC SOLVENT, THE ESTER HAVING THE FORMULA (RO)4M, WHEREIN R IS A MONOVALENT HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF PHENYL, TOLYL, XYLYL AND ALIPHATIC RADICALS HAVING FROM 1 TO 8 CARBON ATOMS AND M IS A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, SAID SOLUTION CONTAINING SUFFICIENT METAL ESTER TO DEPOSIT AN AMOUNT OF SUCH ESTER ON SAID HYDROXYLATED SURFACE EQUIVALENT TO THAT DEPOISTED BY CONTACTING THE PLATE WITH AN ABOUT 0.1 TO ABOUT 10 WEIGHT PERCENT SOLUTION FOR A PERIOD OF TIME UP TO APPROXIMATELY 5 MINUTES, HYDROLYZING AND CONDENSING SAID ESTER ON SAID HYDROXYLATED METAL SURFACE WHILE REACTING SAID ESTER WITH THE HYDROXYL GROUPS OF THE HYDROXYLATED METAL SURFACE, SAID REACTION PRODUCT BEING HYDROPHILIC, SUBSTANTIALLY FREE OF OXIDES OF M AND SUBSTANTIALLY NON-SUSCEPTIVLE TO FURTHER HYDROLYSIS, AND SUBSEQUENTLY APPLYING A LAYER OF LIGHTSENSITIVE MATERIAL OVER SAID REACTION PRODUCT.
Claim 2
Dependent Claim
182 words
A PROCESS OF BONDING A LIGHT-SENSITIVE MATERIAL TO A METAL SURFACE OF A SUPPORT MEMBER COMPRISING HYDROXYLATING THE METAL SURFACE, COATING THE HYDROXYLATED METAL SURFACE WITH A FILM OF A SOLUTION OF A METAL ESTER IN AN ORGANIC SOLVENT, THE ESTER HAVING THE FORMULA (RO)4M, WHEREIN R IS A MONOVALENT HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF PHENYL, TOLYL, XYLYL AND ALIPHATIC RADICALS HAVING FROM 1 TO 8 CARBON ATOMS AND M IS A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, SAID SOLUTION CONTAINING SUFFICIENT METAL ESTER TO DEPOSIT AN AMOUNT OF SUCH ESTER ON SAID HYDROXYLATED SURFACE EQUIVALENT TO THAT DEPOISTED BY CONTACTING THE PLATE WITH AN ABOUT 0.1 TO ABOUT 10 WEIGHT PERCENT SOLUTION FOR A PERIOD OF TIME UP TO APPROXIMATELY 5 MINUTES, HYDROLYZING AND CONDENSING SAID ESTER ON SAID HYDROXYLATED METAL SURFACE WHILE REACTING SAID ESTER WITH THE HYDROXYL GROUPS OF THE HYDROXYLATED METAL SURFACE, SAID REACTION PRODUCT BEING HYDROPHILIC, SUBSTANTIALLY FREE OF OXIDES OF M AND SUBSTANTIALLY NON-SUSCEPTIVLE TO FURTHER HYDROLYSIS, AND SUBSEQUENTLY APPLYING A LAYER OF LIGHTSENSITIVE MATERIAL OVER SAID REACTION PRODUCT.
Claim 3
Dependent Claim
40 words
A PROCESS AS CLAIMED IN CLAIM 1 FURTHER INCLUDING THE STEPS OF EXPOSING PREDETERMINED AREAS OF SAID LIGHTSENSITIVE COMPOUND TO LIGHT, AND THEN REMOVING FROM THE PLATE SELECTED AREAS OF SUCH LIGHT-SENSITIVE COMPOUND TO RENDER THE PLATE READY FOR PRINTING.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |