Retractable keyboard illumination device
Patent 6161944 Issued on December 19, 2000. Estimated Expiration Date: 
May 18, 2019. 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.
May 18, 2019. 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 ReferencesPortable light for laptop computer Electronic luminescence keyboard system for a portable device Method and means for managing a luminescent laptop keyboard Selective call radio with hinged touchpad Illuminated keyboard system Patent #: 6040822 InventorAssigneeApplicationNo. 313812 filed on 05/18/1999US Classes:362/276, Condition responsive345/168, Including keyboard345/170, Light source associated with each key362/253, COMBINED362/287, Angularly adjustable or repositionable362/802POSITION OR CONDITION RESPONSIVE SWITCHExaminersPrimary: Sember, Thomas M.Attorney, Agent or FirmInternational ClassG09G 005/00AbstractA computer system may include a retractable illumination device to illuminate a keyboard in a dimly lit environment. The illumination device may be located proximal to the keyboard or on a display. The illumination device may be activated by raising it to a position above the keyboard or by exposing the device via a slideable cover. The illumination device may be deactivated by retracting it into the computer system or covering it with the slideable cover. | |
