US3095301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic element
Assignee: GAF Chemicals Corp
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Filing: 1959-04-06
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Granted: 1963-06-25
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Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Kostelec Joze
- 👤 Heinz F Nitka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:39
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/10; G03G5/101; G03G5/142
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
AN ELECTROPHOTOGRAPHIC MEMBER COMPRISING A NONMETALLIC BASE PLATE OF HIGH ELECTRICAL RESISTANCE, A COATING ON SAID BASE PLATE FOR INCREASING THE ELECTRIAL CONDUCTIVITY OF THE PLATE, SAID COATING COMPRISING AN AMINOALCOHOL SELECTED FROM THE GROUP CONSISTING OF 2-AMINO-1-BUTANOL, 2-AMINO-2-METHYL-1-PROPANOL, 2-AMINO-2-METHYL-1,3-PROPANEDIOL, 2-AMINO-2-ETHYL-1,3-PROPANEDIOL, TRIS(HYDROXYMETHYL)AMINOMETHANE, 2-AMINO-2-METHYL-1-BUTANOL, 2AMINO-1-ETHANOL, 3-AMINO-2,3-DIMETHYL-2-BUTANOL, 1-AMINO-2-METHYL-2-BUTANOL, 1-AMINO-3-METHYL-2-BUTANOL, 2AMINO-1-PROPANOL, 1-AMINO-2-METHYL-2-PROPANOL, 2-AMINO1-PENTANOL, 3-AMINO-1,2-PENTANOL AND 2-AMINO-2-METHYL3-PENTANOL; SAID COATING COVERED BY A LAYER COMPRISING A PHOTOCONDUCTIVE ZINC OXIDE UNIFORMLY DISPERSED IN AN INSULATING FILM-FORMING BINDER HAVING AN ELECTRICAL RESISTANCE HIGHER THAN THAT OF THE BASE PLATE ON SAID COATED BASE PLATE.
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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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |