Thermal writing surface and method for making the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 7, 1996
Grant Date -
N/A
app pub date -
Dec 29, 1993
filing date -
Dec 29, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermal writing device which changes color in response to induced temperature changes and a method for making such a device is disclosed. The thermal writing device includes a flexible substrate with low thermal mass for rapidly assimilating temperatures. Thermochromic inks which change color when subjected to temperature changes are printed upon or incorporated within this flexible substrate. The flexible substrate is disposed upon a support material having low thermal mass and poor heat conductance to facilitate rapid color transitions by the thermochromic inks with minimal expenditures of energy.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully