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:
Aug. 31, 1993
Filed:
Apr. 17, 1991
Applicant:
Inventor:
Nils E Martensson, Woking, GB;
Assignee:
Nokia Mobile Phones Ltd., Surrey, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379 58 ; 379 63 ; 3408255 ;
Abstract
A portable radio telephone has a keypad including a plurality of externally accessible keys. The keys can be disabled (i.e. the keypad can be locked) to prevent accidental actuation thereof by performing a predetermined order of keystrokes using two of the keys which ordinarily have an alternative function associated therewith. Thus, for example, depression of the # key followed by the ON/OFF key temporarily enables the keyboard lock. The lock can be disabled simply by repeating the same keystrokes.
Martensson, Nils. (1993). Portable radio telephone which terminates an electronic keypad lock (U.S. Patent No. 5241583). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5241583
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile