US3348944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoengraving resist
Assignee: Fairchild Semiconductor Corp
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Filing: 1963-07-17
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Granted: 1967-10-24
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Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 Michalchik Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:59
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0557; G03G5/0578; B; B41; B41N; B41N1/00; B41N1/04; B41N1/06; G03G13/00; G03G13/26; G03G13/32; G03G9/00; G03G9/08; G03G9/09; G03G9/0926; G03G9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN A RECORDING ELEMENT COMPRISING A PHOTOCONDUCTIVE LAYER DEPOSITED ON A METAL BASE, SAID LAYER COMPRISING PHOTOCONDUCTIVE ZINC OXIDE SUSPENDED IN AN INSULATING FILM FORMED FROM A HYDROXYLATED SILICONE RESIN, THE IMPROVEMENT WHICH COMPRISES THE PRESENCE IN SAID SILICONE RESIN FILM OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ALKOXY PHENYL SILANCES AND ALKOXY PHENYL SILOXANES, THE ALKOXY GROUP OF SAID SILANE AND SILOXANE CONTAINING UP TO FOUR CARBON ATOMS IN SUCH AMOUNT THAT THE ALKOXY CONTENT OF THE FILM IS FROM ABOUT 0.3% TO ABOUT 2% BY WEIGHT.
Claim 2
Dependent Claim
90 words
IN A RECORDING ELEMENT COMPRISING A PHOTOCONDUCTIVE LAYER DEPOSITED ON A METAL BASE, SAID LAYER COMPRISING PHOTOCONDUCTIVE ZINC OXIDE SUSPENDED IN AN INSULATING FILM FORMED FROM A HYDROXYLATED SILICONE RESIN, THE IMPROVEMENT WHICH COMPRISES THE PRESENCE IN SAID SILICONE RESIN FILM OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ALKOXY PHENYL SILANCES AND ALKOXY PHENYL SILOXANES, THE ALKOXY GROUP OF SAID SILANE AND SILOXANE CONTAINING UP TO FOUR CARBON ATOMS IN SUCH AMOUNT THAT THE ALKOXY CONTENT OF THE FILM IS FROM ABOUT 0.3% TO ABOUT 2% BY WEIGHT.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |