Process for manufacture of tamper-resistant polyester credit cards
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 11, 1985
Grant Date -
N/A
app pub date -
Apr 4, 1983
filing date -
Apr 4, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a credit card or identification card fabricated from amorphous polyester sheet material wherein at least the area of said card containing embossed numerical or letter characters and the characters themselves are composed of substantially crystalline polyester. Such characters can not readily be altered by either heat treatment or by shaving them off.
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