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:
Jan. 28, 1997
Filed:
Dec. 12, 1994
Applicant:
Inventors:
Etienne Bornand, Boudry, CH;
Rudolf Dinger, Saint-Aubin, CH;
Assignee:
ASULAB S.A., Bienne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C / ; G04G / ;
U.S. Cl.
CPC ...
368 10 ; 368 21 ;
Abstract
According to this method the longitude of the place where one is situated on the surface of the earth is determined by comparing the local time with the time of a reference time zone, and the latitude of the place where one is situated is determined by measuring the inclination of the earth's magnetic field in relation to the horizontal.