Patents by Inventor Richard J. MacDuffee

Richard J. MacDuffee 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).

  • Collapsible support frame with receptacle
    Patent number: 4638967
    Abstract: A collapsible support frame for a receptacle comprising a frame of generally rectilinear configuration including opposed spaced apart front and rear frame portions connected together with opposed spaced apart side frame portions such that the side frame portions in the regions of the opposed front and rear frame portions respectively present downwardly projecting surface engaging formations of like extent, the disposable receptacle including opposed front and rear panels and opposed side panels terminating lowermost in a bottom panel and having a perimetral extent so as to be disposable within the collapsible support frame, the opposed front and rear panels and opposed side panels having a vertical extent exceeding that of the downwardly projecting surface engaging formations of the collapsible support frame and having a perimetral extent so that when the opposed front and rear panels and opposed side panels are folded over the opposed spaced apart front and rear frame portions and opposed spaced apart side f
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: January 27, 1987
    Inventor: Richard J. MacDuffee