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:
May. 21, 1991
Filed:
Jan. 16, 1990
Applicant:
Inventors:
Robert A Cordery, Danbury, CT (US);
William L Kilmartin, West Haven, CT (US);
Claude Zeller, Monroe, CT (US);
Assignee:
Pitney Bowes Inc., Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340551 ; 340572 ;
Abstract
A ferromagnetic marker for an electronic surveillance system is magnetically biased so that the magnetic fields of two different regions thereof extend in different direction, e.g. in opposite directions.
Cordery, Robert. (1991). Double pulse magnetic markers (U.S. Patent No. 5017907). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5017907
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile