Hearing aid headband support
Patent 4918757 Issued on April 24, 1990. Estimated Expiration Date: 
January 30, 2009. 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.
January 30, 2009. 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 Re25059 2179615 2647955 Adjustable cap kit Retroreflective strip with pocket Adjustable strap with fasteners for attachment of medical tubing Folding party hat Patent #: 4719651 InventorsApplicationNo. 303435 filed on 01/30/1989US Classes:2/171, HEAD COVERINGS2/209.3, With interrupted crown381/312, HEARING AIDS, ELECTRICAL381/326Non-air-conducted sound deliveryExaminersPrimary: Nerbun, PeterAttorney, Agent or FirmForeign Patent References
International ClassesA42B 001/00G02C 011/06 AbstractIn a hearing aid support, an elongated adjustable headband surrounds the head from the forehead hairline in the vicinity of the ears to the nape of the neck. Strip forming slits in the headband at the predetermined position of the skull bone support a bone conduction oscillator to make contact with the mastoid bone. | |
