US3051569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive materials
Assignee: American Photocopy Equipment Co
•
Filing: 1959-10-26
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Granted: 1962-08-28
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Expires: 1979-10-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Meyer L Sugarman
- 👤 Nicholas P Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:25
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/09
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A PHOTOCONDUCTIVE COMPOSITION COMPRISING FINELY DIVIDED PHOTOCONDUCTIVE ZINC OXIDE SUSPENDED IN AN ELECTRICALLY INSULATING FILM FORMING VEHICLE HAVING INCORPORATED THEREIN AN ORGANIC DYE BLEND OF A PLURALITY OF COMPATIBLE COLORED SPECTRALLY SENTITIVE ORGANIC DYES OF SUCH COLORS AND IN SUCH AMOUNTS AS TO HAVE WHEN MIXED A GRAY TO BLACK APPEARANCE, SAID GRAY TO BLACK BLEND BEING INCORPORATED WITH SAID ZINC OXIDE AND VEHICLE IN AN AMOUNT SUFFICIENT, IN COOPERATION WITH SAID ZINC OXIDE, TO BROADEN THE BASIC SPECTRAL RESPONSE THEREOF TO INCLUDE VISIBLE LIGHT BETWEEN ABOUT 4300A. AND ABOUT 7000A., AND TO PRODUCE, IN COMBINATION WITH SAID ZINC OXIDE, AN OVERALL SPECTRAL REFLECTION IMPARTING TO THE OVERALL COMPOSITION A WHITE TO OFF-WHITE SPECTRAL APPEARANCE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |