Game call having a two-diaphragm sounder and lip structure
Patent 4799913 Issued on January 24, 1989. Estimated Expiration Date: 
May 29, 2007. 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 29, 2007. 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 677113 2969611 3811221 3815283 3900993 Game caller having diaphragm means, megaphone and bellows Game call with two-diaphragm sounder Wild turkey call Patent #: 4576584 InventorApplicationNo. 07/055460 filed on 05/29/1987US Classes:446/193, And bellows or bulb446/203, Plural differently operated sounders446/213, Sounding74/558.5, Caps and covers84/330WindExaminersPrimary: Hafer, Robert A.Assistant: Harris, Charles H. Attorney, Agent or FirmInternational ClassesA01M 31/00 (20060101)G10K 9/00 (20060101) G10K 9/02 (20060101) AbstractA hand-operated game call having a sound chamber, a handle including a horn at one end of the chamber, a bellows at the other end of the chamber and openings in both chamber ends; the chamber including a diaphragm normally closing each chamber, each diaphragm having a normally taut edge engaging an opening chord edge, the chord edge including a lip on the outside of the wall for preventing the diaphragm from overlapping the wall during vibration. | |
