On hook/off hook mechanism for wrist telephone
Patent 5499292 Issued on March 12, 1996. Estimated Expiration Date: 
May 6, 2014. 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 6, 2014. 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 ReferencesWristwatch radiotelephone Telephone handset with magnetic holder Semiconductor memory device Wrist telephone Aural annunciator circuit for a receiver Patent #: 5404582 InventorsAssigneeApplicationNo. 240061 filed on 05/06/1994US Classes:379/433.1, Handset having special feature (e.g., wrist watch)368/13, Telephone379/433.06Button or switch having specific functionExaminersPrimary: Hofsass, JefferyAssistant: Chiang, Jack Attorney, Agent or FirmInternational ClassH04M 001/00AbstractA radiotelephone wrist device includes a case having a transceiver and a strap attached to the case for fastening the device to a user's wrist. The strap has a top layer and a bottom layer in which the top layer is releasable from the bottom layer of the strap. A microphone is located on the strap and electrically connected to the transceiver. A speaker is located at an end of the top layer of the strap and electrically connected to the transceiver. A cradle for receiving the speaker is formed in the case. A sensor located beneath the cradle detects when the speaker is removed from the cradle. | |
