Patent US2555321A successfully refreshed from Google Patents.
US2555321A
Expired / Lapsed
US
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Facsimile recording paper
Assignee: Western Union Telegraph Co
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Filing: 1941-08-08
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Granted: 1951-06-05
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Expires: 1961-08-08
Abstract
No abstract record available.
Inventors
- 👤 Harold R Dalton
- 👤 Austin G Cooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:29
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/24; B41M5/245; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31772; Y10T428/31775; Y10T428/31801; Y10T428/31804; Y10T428/31808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AN ELESTROSENSITIVE RECORDING PAPER COMPRISING A NONCONDUCTIVE PAPER BASE, SAID PAPER BASE HAVING ON ONE SURFACE THEREOF AN ADHERENT ELECTRICALLY CONDUCTIVE COATING, SAID CONDUCTING COATING HAVING THEREON A THIN ADHERENT SURFACE COATING OF SUCH CHARACTER AS TO BE BURNED AWAY IN ELEMENTAL AREAS THEREOF BY THE APPLICATION THERETO OF ELECTRICAL MARKING CURRENTS WHEREBY TO EXPOSE SAID CONDUCTIVE COATING.
Claim 2
Dependent Claim
58 words
AN ELESTROSENSITIVE RECORDING PAPER COMPRISING A NONCONDUCTIVE PAPER BASE, SAID PAPER BASE HAVING ON ONE SURFACE THEREOF AN ADHERENT ELECTRICALLY CONDUCTIVE COATING, SAID CONDUCTING COATING HAVING THEREON A THIN ADHERENT SURFACE COATING OF SUCH CHARACTER AS TO BE BURNED AWAY IN ELEMENTAL AREAS THEREOF BY THE APPLICATION THERETO OF ELECTRICAL MARKING CURRENTS WHEREBY TO EXPOSE SAID CONDUCTIVE COATING.
References Cited (Backward Citations)
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US2251742A
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US2141975A
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US2294146A
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US2310946A
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US2328198A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |