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:
Apr. 09, 1991
Filed:
Jan. 19, 1990
Applicant:
Inventors:
Lynn F Amis, Valley, NE (US);
Daniel R Gee, Lincoln, NE (US);
Assignee:
Convoy Security Company, Omaha, NE (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06M / ; G06M / ;
U.S. Cl.
CPC ...
235 / ;
Abstract
A sequential seal for use with a roll-up door positioned in a truck or van body and which indicates the number of times that the door has been moved from its closed position towards its open position. A sequential counter is mounted in the door and is actuated each time the door is moved from its closed position towards its open position.