Microphone screen
Patent 4065648 Issued on December 27, 1977. Estimated Expiration Date: 
December 27, 1994. 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.
December 27, 1994. 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 2200097 2623957 3652810 3766333 3862377 InventorsAssigneeApplicationNo. 05/731293 filed on 10/12/1976US Classes:381/359WindscreenExaminersPrimary: Cooper, William C.Attorney, Agent or FirmInternational ClassH04R 1/08 (20060101)AbstractAn improved microphone structure having a ball screen enclosing the transducer. The microphone body or handle has an annular shoulder at its upper end to provide an upstanding externally threaded projection. The lower part of the ball screen has an opening to receive the upstanding handle projection, the peripheral portion of the screen at the opening being turned inwardly and adapted to be secured to an internally threaded base ring. The base ring is threaded on the handle projection to secure the ball screen in place. | |
