Security papers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 15, 1980
Grant Date -
N/A
app pub date -
Nov 29, 1977
filing date -
Dec 7, 1976
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security paper which contains a security device e.g. a strip, thread or planchette having at least two machine verifiable security features thereon, one of which is a magnetic material, which may be magnetically coded or printed in a predetermined pattern on the device, and a second of which is a luminescent material, an X-ray absorbent or a metal. The provision of several features on one device provides a large increase in document security.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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