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:
Sep. 30, 2014
Filed:
Mar. 07, 2011
Applicant:
Josef Osterweil, Rockville, MD (US);
Inventor:
Josef Osterweil, Rockville, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01); G01R 33/12 (2006.01); H01H 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and method of a tamperproof magnetic proximity sensor based on a magnetically shielded magnetic sensor. The proximity sensor is substantially impervious to external magnetic field and is protected by external magnetic sensors for preemptive detection of external magnetic field tamper attempts.