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:
Oct. 22, 1991
Filed:
Aug. 10, 1989
Applicant:
Inventor:
Gregor Antes, Zurich, CH;
Assignee:
LGZ Landis & Gyr Zug AG, Zug, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235457 ; 235454 ; 235462 ; 235472 ; 359-2 ; 359-3 ; 359 15 ; 359558 ;
Abstract
An article of manufacture contains a substrate which contains a bar code field containing bar elements and background elements. The bar code elements have embossed, optically-reactive, microscopic periodic, relief structures which are suitable for optical-machine readout. A readout device generates an incident light beam and contains photosensors to detect the diffracted light beams.