Patent US2844543A successfully refreshed from Google Patents.
US2844543A
Expired / Lapsed
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Transparent photoconductive composition
Assignee: Horizons Inc
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Filing: 1955-03-18
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Granted: 1958-07-22
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Expires: 1975-03-18
Abstract
No abstract record available.
Inventors
- 👤 Richard A Fotland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
H; H10; H10P; H10P95/00; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; H10F; H10F30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
AN EVAPORATED TRANSPARENT PHOTOCONDUCTIVE MATERIAL CONSISTING ESSENTIALLY OF AS2S3 AND BETWEEN ABOUT 2.5% AND 10% BY WEIGHT OF SE.
Claim 2
Dependent Claim
19 words
AN EVAPORATED TRANSPARENT PHOTOCONDUCTIVE MATERIAL CONSISTING ESSENTIALLY OF AS2S3 AND BETWEEN ABOUT 2.5% AND 10% BY WEIGHT OF SE.
References Cited (Backward Citations)
US1997479A
Cited
US2693416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |