Keypads for electrical devices
October 31, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesTelephone Prehensile positioning computer keyboard Membrane switch having a rotary motion detection function Wireless telephone with extension having peripheral devices provided thereon Method of allowing users to enter characters into electronic equipment by using cursor key and displaying user-entered characters Ergonomic cellular phone Portable device comprising keypad and screen Patent #: 6373501 InventorsAssigneeApplicationNo. 703021 filed on 10/31/2000US Classes:345/169, Portable (i.e., handheld, calculator, remote controller)341/22, Including keyboard or keypad379/433.07KeypadExaminersPrimary: Liang, ReginaAttorney, Agent or FirmForeign Patent References
International ClassG09G 005/00AbstractA mobile telephone includes a body, a display, and a keypad. The keypad has a plurality of individual numeral keys assigned to individual numerals and may be rotated with respect to the body. In this way it is possible for the presentation of information on the display to remain in a fixed orientation with respect to a user while the body is rotated about the display so that the mobile telephone can be converted from right-handed to left-handed use or the display can be moved from a first orientation to a second orientation.Field of SearchIncluding keyboardPortable (i.e., handheld, calculator, remote controller) Light source associated with each key Having foreign language capability (e.g., Japanese, Chinese) Having programmable function key Including keyboard or keypad Variable key legends Handset structure Button or switch having specific function Keypad Housing or housing component | |
