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:
Jun. 28, 2011
Filed:
Mar. 13, 2007
Chao Chen, Waterloo, CA;
Jana Lynn Papke, Milton, CA;
Chao Chen, Waterloo, CA;
Jana Lynn Papke, Milton, CA;
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
A handheld wireless communication device cradleable by an user during text entry. A display and key field are located on a front face of the device. The key field includes alphanumeric input keys and menu control keys. Additionally, an user-removable trackball navigation tool is provided on the device. The trackball navigation tool can be releasably snap-engaged or releasably friction-engaged in the body of the device. The removable trackball navigation tool enables the user to independently remove the trackball navigation tool from the device and perform self-maintenance on the device with respect to the navigation tool.