Patents by Inventor Dale A. Athy

Dale A. Athy 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).

  • Camera filter adaptor system
    Patent number: 4684231
    Abstract: An improved camera lens filter holder attachment system. The system permits light filtering attachments to be readily installed over and removed from the lens of a camera with a single short snap-on motion of the hand and wrist of a photographer. A releasable cammed attachment mechanism is utilized to maintain a light filtering attachment in position over a camera lens.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: August 4, 1987
    Inventor: Dale A. Athy