Patents by Inventor William Stratton Pritchard

William Stratton Pritchard 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).

  • Picture frame system
    Patent number: 3935656
    Abstract: A frame system for mounting a sheet-like article such as a photograph or the like for display, including a front transparent sheet and a backing layer in superposed relation and between which the sheet-like article is held. Holding the composite structure firmly together are a number of clips which are attached to a rod structure positioned on the underside of the backing sheet and which extend around and hold the edges of both the transparent sheet and the backing layer.
    Type: Grant
    Filed: May 17, 1974
    Date of Patent: February 3, 1976
    Inventor: William Stratton Pritchard