Hearing aid
Patent 4471490 Issued on September 11, 1984. Estimated Expiration Date: 
February 16, 2003. 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.
February 16, 2003. 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 References Re26174 2950357 2987584 Modular in-the-ear hearing aid Patent #: 4069400 InventorApplicationNo. 06/467134 filed on 02/16/1983US Classes:381/324, Component mounting29/460, Subsequently coating381/328Ear insertExaminersPrimary: Rubinson, Gene Z.Assistant: Schroeder, L. C. Attorney, Agent or FirmInternational ClassH04R 25/02 (20060101)AbstractA hearing aid having an earplug that is inserted wholly within the auditory canal of the ear of a user to leave the concha portion of the user's ear exposed for the collection of sound waves for transmission to a microphone as located in the outermost end of the ear plug; the component parts of the hearing aid being wholly contained within the ear plug, thereby avoiding the use of the conventional exposed tubing, wiring and behind-the-ear housing which normally contains the hearing aid controls therein, and a cover member being pivotally mounted on the outer surface of the earplug for concealing the controls thereon and for effecting a smooth uninterrupted outer surface that is aesthetically pleasing as located in the user's ear. | |
