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. 28, 1999
Filed:
May. 06, 1997
Applicant:
Inventor:
Dirk Michalzik, Gladbeck, DE;
Assignee:
Nokia Mobile Phones Limited, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
455 90 ; 455550 ; 455575 ;
Abstract
The invention relates to a handset for a radio telephone system, having a front housing shell (2) and a rear housing shell (1) which can be connected thereto. The handset has in its interior a locking device (22, 23) which, in a locking position, locks the housing shells (1, 2) to one another and, in an unlocking position, releases the locking. In addition, the handset also contains in its interior a blocking device (30, 32) which prevents the locking device changing over automatically from the locking position into the unlocking position. Activation of the blocking device (30, 32) is possible only in a way which is as a rule difficult to discover.