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:
Dec. 07, 1999
Filed:
Jul. 31, 1997
Applicant:
Inventor:
Larry C Wortham, Garland, TX (US);
Assignee:
HighwayMaster Communications, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340431 ; 340989 ; 34082506 ; 34082554 ;
Abstract
A trailer communications system (10) includes a tag unit (26) for location on a trailer (12). A reader unit (28) can be placed at a remote location. The tag unit (26) and the reader unit (28) communicate information in response to a predetermined event which occurs substantially simultaneously at both the trailer (12) and the remote location.