Security papers

Details Security papers Security papers

1977-11-29

1980-01-15

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

427 7, 428208, 428209, 428900, 428916, B41M 314, B44F 112

Patent

active

041839897

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.

REFERENCES:
patent: 3679449 (1972-07-01), Nagot et al.
patent: 3713861 (1973-01-01), Sharp
patent: 3886083 (1975-05-01), Laxer
patent: 3919447 (1975-11-01), Kelmer et al.
patent: 3928226 (1975-12-01), McDonough et al.
patent: 4066280 (1978-01-01), LaCapria
patent: 4069367 (1978-01-01), Ameki et al.

Affiliated with

Also associated with

Rating

Security papers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Security papers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security papers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1028737