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. 04, 2012
Filed:
Aug. 29, 2008
Applicants:
Jason T. Griffin, Waterloo, CA;
Frank M. Tyneski, Kitchener, CA;
Inventors:
Jason T. Griffin, Waterloo, CA;
Frank M. Tyneski, Kitchener, CA;
Assignee:
Research In Motion Limited, Waterloo, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/02 (2006.01); B41J 5/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A key arrangement includes a plurality of keys that are arranged in a regular grid of rows and columns. The columns include a first column, a last column, and at least one middle column. The keys in the first and last columns are smaller than the keys in the at least one middle column. A method for improving the ergonomics of a key arrangement on a keyboard of a fixed size is provided. A method for designing a key arrangement for a mobile communication device is also provided.