US3090697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sensitive marking papers and methods for making same
Assignee: Nashua Corp
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Filing: 1961-02-13
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Granted: 1963-05-21
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Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 William R Lawton
- 👤 Harry A Smith
- 👤 James N Copley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:41
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/36; B41M5/363; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/918; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A HEAT SENSITIVE RECORDING PAPER COMPRISING A BASE SHEET AND A COATING ADHERENT THERETO AND OBSCURING A SURFACE THEREOF, SAID COATING COMPRISING A CONTINUOUS PHASE OF A THERMOPLASTIC RESIN, WHICH RESIN WHEN TAKEN BY ITSELF AS A FILM IS ESSENTIALLY TRANSPARENT, AND A DISPRESED PHASE OF FINELY DIVIDED PARTICLES OF A MOLECULAR COMPOUND DISTRIBUTED THROUGHOUT SAID FILM AND RENDERING THE SAME OPAQUE, SAID MOLECULAR COMPOUND CONSISTING OF AN AMINE IN COMBINATION WITH A HALOGENATED AROMATIC HYDROXY COMPOUND WHICH IS COMPATIBLE WITH SAID RESIN, AND BEING STABLE AT NORMAL CONDITIONS OF TEMPERATURE AND HUMIDITY BUT DISSOCIABLE AT AN ELEVATED TEMPRATURE TO YIELD SAID AMINE AND HALOGENATED AROMATIC HYDROXY COMPOUND, WHEREBY UPON HEATING SAID PAPER, SAID HALOGENATED AROMATIC HYDROXY COMPOUND AND SAID RESIN COALESCE AND RENDER SAID FILM TRANSPARENT WHERE HEATED.
Claim 2
Dependent Claim
129 words
A HEAT SENSITIVE RECORDING PAPER COMPRISING A BASE SHEET AND A COATING ADHERENT THERETO AND OBSCURING A SURFACE THEREOF, SAID COATING COMPRISING A CONTINUOUS PHASE OF A THERMOPLASTIC RESIN, WHICH RESIN WHEN TAKEN BY ITSELF AS A FILM IS ESSENTIALLY TRANSPARENT, AND A DISPRESED PHASE OF FINELY DIVIDED PARTICLES OF A MOLECULAR COMPOUND DISTRIBUTED THROUGHOUT SAID FILM AND RENDERING THE SAME OPAQUE, SAID MOLECULAR COMPOUND CONSISTING OF AN AMINE IN COMBINATION WITH A HALOGENATED AROMATIC HYDROXY COMPOUND WHICH IS COMPATIBLE WITH SAID RESIN, AND BEING STABLE AT NORMAL CONDITIONS OF TEMPERATURE AND HUMIDITY BUT DISSOCIABLE AT AN ELEVATED TEMPRATURE TO YIELD SAID AMINE AND HALOGENATED AROMATIC HYDROXY COMPOUND, WHEREBY UPON HEATING SAID PAPER, SAID HALOGENATED AROMATIC HYDROXY COMPOUND AND SAID RESIN COALESCE AND RENDER SAID FILM TRANSPARENT WHERE HEATED.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |