Patents by Inventor Donald P. Attenburrow

Donald P. Attenburrow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stethoscope for use on a horse
    Patent number: 4218584
    Abstract: This invention is a stethoscope for use by a veterinary surgeon with a microphone transducer (15) mounted within a casing arranged to be held by a harness against the skin of the animal, with the transducer opening coupled to the skin through an enclosed column of air, and the harness held in position by a grid (33, 34) capable of being attached to the animal's hair. The output from the transducer can be transmitted from the animal by radio.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: August 19, 1980
    Inventor: Donald P. Attenburrow