Patent US4786094A successfully refreshed from Google Patents.
Patent US2714441A successfully refreshed from Google Patents.
Patent US3341326A successfully refreshed from Google Patents.
US3341326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dark decay controlled xerography
Assignee: Xerox Corp
•
Filing: 1962-10-01
•
Granted: 1967-09-12
•
Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Snelling Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:01
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207; G03G5/10; G03G5/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A XEROGRAPHIC PLATE COMPRISING A CONTINUOUS PHOTOCONDUCTIVE INSULATING LAYER ON AN ELECTRICALLY CONDUCTIVE BASE LAYER AND FURTHER INCLUDING A PATTER OF SMALL, SEPARATE, DISCRETE PORTIONS OF AN INSULATING MATERIAL ON SAID CONDUCTIVE SUBSTRATE BETWEEN PORTIONS OF SAID CONDUCTIVE SUBSTRATE, AND PORTIONS OF SAID CONTINUOUS PHOTOCONDUCTIVE INSULATING LAYER, SAID PORTIONS OF AN INSULATING MATERIAL BEING THIN RELATIVE TO SAID CONTI NUOUS PHOTOCONDUCTIVE INSULATING LAYER AND HAVING A THICKNESS GREATER THAN 2 MICRONS.
Claim 2
Dependent Claim
71 words
A XEROGRAPHIC PLATE COMPRISING A CONTINUOUS PHOTOCONDUCTIVE INSULATING LAYER ON AN ELECTRICALLY CONDUCTIVE BASE LAYER AND FURTHER INCLUDING A PATTER OF SMALL, SEPARATE, DISCRETE PORTIONS OF AN INSULATING MATERIAL ON SAID CONDUCTIVE SUBSTRATE BETWEEN PORTIONS OF SAID CONDUCTIVE SUBSTRATE, AND PORTIONS OF SAID CONTINUOUS PHOTOCONDUCTIVE INSULATING LAYER, SAID PORTIONS OF AN INSULATING MATERIAL BEING THIN RELATIVE TO SAID CONTI NUOUS PHOTOCONDUCTIVE INSULATING LAYER AND HAVING A THICKNESS GREATER THAN 2 MICRONS.
References Cited (Backward Citations)
US2599542A
Cited
US2543051A
Cited
US2901348A
Cited
US2853383A
Cited
US2844543A
Cited
US2917385A
Cited
US2881340A
Cited
US3005707A
Cited
US3031572A
Cited
US3234017A
Cited
US3281240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |