Patent US3352670A successfully refreshed from Google Patents.
US3352670A
Expired / Lapsed
US
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Supersensitizers for optically sensitized photoconductive layers
Assignee: 3M Co
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Filing: 1964-02-14
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Granted: 1967-11-14
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Expires: 1984-02-14
Abstract
No abstract record available.
Inventors
- 👤 Robert F Coles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:49
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/062; G03G5/0612; G03G5/0614; G03G5/06142; G03G5/06144
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
IN A LIGHT SENSITIVE RECORDING ELEMENT HAVING AN OPTICALLY SENSITIZED PHOTOCONDUCTIVE ZINC OXIDE LAYER AND BEING SUITABLE FOR USE IN ELECTROLYTIC ELECTROPHOTOGRAPHY, THE IMPROVEMENT WHICH COMPRISES FROM ABOUT 0.0001% TO ABOUT 1.5% BY WEIGHT OF ZINC OXIDE OF A SUPERSENSITIZER IN SAID LAYER COMPRISING AN ORGANIC COMPOUND WHICH IS A COMPLEXING AGENT FOR ZINC ION AND WHICH CONTAINS THE RADICAL
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |