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:
Feb. 21, 1989
Filed:
Aug. 04, 1987
Applicant:
Inventor:
Jurgen Kruhn, Berlin, DE;
Assignee:
Zeiss Ikon AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70393 ; 70406 ;
Abstract
A lock and key combination includes profile shapes extending along the lateral faces of the key which extend at an angle relative to the key spine to make acquisition of replacement key copies more difficult.