Patents by Inventor Donald W. Limbaugh

Donald W. Limbaugh 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).

  • Dog or animal retainer device
    Patent number: 4170962
    Abstract: A tethering device, for being incorporated into a leash used for holding a dog or other animal, the tethering device including a convolute or spiral loop at each end of the leash, and which is quickly and easily attachable to a securing ring, by simply rotating the convolute upon the ring.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: October 16, 1979
    Inventor: Donald W. Limbaugh