The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 1992
Filed:
Feb. 06, 1991
Applicant:
Inventors:
Peter Gregory, Bolton, GB;
Arthur Quayle, Holcombe Brook, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42D / ;
U.S. Cl.
CPC ...
283 91 ; 283 94 ; 427-7 ; 427145 ; 427160 ; 427288 ;
Abstract
A method of security coding an article which comprises applying to the article an identification mark comprising at least one colorless or weakly-colored infra-red absorbing material and an article carrying one or more identification codes applied according to the method. The method is suitable for marking documents, currency and equivalents, such as cheques, credit cards and tickets, and for the identification of copyright materials and high valued added goods, such as tapes, cassettes, books, films, cameras, perfumes, spirits and designer goods to inhibit counterfeiting.