Stock material or miscellaneous articles – All metal or with adjacent metals – Having magnetic properties – or preformed fiber orientation...
Reexamination Certificate
2005-04-05
2005-04-05
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
All metal or with adjacent metals
Having magnetic properties, or preformed fiber orientation...
C428S660000, C428S669000, C428S686000, C428S212000, C428S409000, C428S692100, C283S082000
Reexamination Certificate
active
06875522
ABSTRACT:
The invention discloses magnetic OVP, said pigment consisting of thin-layer flakes having a basic metal-dielectric-metal structure to result in a viewing-angle dependent color appearance, and having, in addition to said viewing-angle dependent color appearance, incorporated magnetic properties, to make them distinguishable from OVP of similar appearance but not having said magnetic properties. The invention discloses as well methods for obtaining such pigments and the use of such pigments as security elements in inks, coatings and articles.
REFERENCES:
patent: 4536444 (1985-08-01), Sumiya et al.
patent: 4838648 (1989-06-01), Phillips et al.
patent: 5109375 (1992-04-01), Greidanus et al.
patent: 5374472 (1994-12-01), Krishnan
patent: 6483741 (2002-11-01), Iwasaki et al.
patent: 20010019461 (2001-09-01), Allenspach et al.
patent: 20030143400 (2003-07-01), Phillips et al.
patent: WO 9967093 (1999-12-01), None
Despland Claude-Alain
Müller Edgar
Seto Myron
Tiller Thomas
Bernatz Kevin M.
Shoemaker and Mattare
SICPA Holding SA
LandOfFree
Magnetic thin film interference device or pigment and method... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic thin film interference device or pigment and method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic thin film interference device or pigment and method... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3387873