US3087869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrosensitive recording process and sheets
Assignee: 3M Co
•
Filing: 1960-03-31
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Granted: 1963-04-30
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Expires: 1980-03-31
Abstract
No abstract record available.
Inventors
- 👤 Frank A Hamm
- 👤 Richard L Weiher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:43
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/06; B; B41; B41M; B41M5/00; B41M5/20; H; H04; H04N; H04N1/00; H04N1/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN ELECTROLYTIC PROCESS FOR THE RECORDING OF FACSIMILE AND OTHER ELECTRICAL IMPULSE INFORMATION WHICH COMPRISES PASSING AN ELECTRICAL CURRENT THROUGH A SHEET COMPRISING A CONTINUOUS ELECTRICALLY CONDUCTIVE BACKING HAVING SUPERIMPOSED THEREON A HOMAGENEOUS COATING OF FINELY DIVIDED INDIUM OXIDE AND A FILM FORMING BINDER HAVING LOWER ELECTRICAL CONDUCTIVELY THAN SAID INDIUM OXIDE, SAID INDIUM OXIDE BEING IN CONTACT WITH AN AQUEOUS ELECTROLYTE, THEREBY ELECTROLYTICALLY REDUCING THE INDIUM OXIDE POWDER TO FREE INDIUM.
Claim 2
Dependent Claim
72 words
AN ELECTROLYTIC PROCESS FOR THE RECORDING OF FACSIMILE AND OTHER ELECTRICAL IMPULSE INFORMATION WHICH COMPRISES PASSING AN ELECTRICAL CURRENT THROUGH A SHEET COMPRISING A CONTINUOUS ELECTRICALLY CONDUCTIVE BACKING HAVING SUPERIMPOSED THEREON A HOMAGENEOUS COATING OF FINELY DIVIDED INDIUM OXIDE AND A FILM FORMING BINDER HAVING LOWER ELECTRICAL CONDUCTIVELY THAN SAID INDIUM OXIDE, SAID INDIUM OXIDE BEING IN CONTACT WITH AN AQUEOUS ELECTROLYTE, THEREBY ELECTROLYTICALLY REDUCING THE INDIUM OXIDE POWDER TO FREE INDIUM.
References Cited (Backward Citations)
US2173141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |