Patent US3165458A successfully refreshed from Google Patents.
US3165458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic recording sheets
Assignee: 3M Co
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Filing: 1961-09-22
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Granted: 1965-01-12
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Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Benjamin R Harriman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:07
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/02; G03G5/00; G03G5/14; G03G5/147; G03G5/14704; G03G9/00; G03G9/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A PHOTOCONDUCTIVE COPYSHEET CAPABLE OF ELECTROLYTIC DEVELOPMENT WHICH COMPRISES A CONTINUOUS ELECTRICALLY CONDUCTIVE LAYER HAVING THEREON A THIN, CONTINOUS AND CONTGUOUS LAYER OF PHOTOCONDUCTIVE PARTICLES IN A WATERINSOLUBLE INSULATIVE BINDER AND, SUPERIMPOSED THEREON, A THIN, CONTINUOUS, GLOSSY, ADHERENT, TRANSPARENT, COHESIVE, WATER PERMEABLE AND WTER INSOLUBLE LAYER COMPRISING A FILM FORMING SILICA, SAID LAYER BEING ESSENTIALLY FREE OF ALKALI METAL IONS.
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) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |