Varying tone securing document

Details Varying tone securing document Varying tone securing document

B - Operations, Transporting

42

D

B42D 15/10 (2006.01) B41M 3/14 (2006.01) G03C 5/08 (2006.01) G03G 21/04 (2006.01) G07D 7/12 (2006.01)

Patent

CA 2062237

An improved security document which protects documents from copying on color copying machines. The document has cancellation terms and background pattern in two tones. If the copier is adjusted to obscure the cancellation term on reproduced copies at one tone, the cancellation at the other tone will appear. In an alternative embodiment, the density of the cancellation term and the background pattern vary across the face of the document. In this case, the cancellation term will appear somewhere on the copy no matter what copier adjustments are made.

Affiliated with

Also associated with

Rating

Varying tone securing document does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1768972