Patents by Inventor Archibald Porteous

Archibald Porteous 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).

  • Glide insert for hanging file folder system
    Patent number: 4236770
    Abstract: The invention provides a device for insertion into the ends of hanging bars of file folder systems to reduce the friction and noise when those hanging bars are slid along the guide rails of filing cabinets. The device fits into the ends of the hanging bars and protrudes through the top edge of the hanging bars with pointed projections to inhibit the accidental withdrawal or dislodgement of the device from the hanger bar ends.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: December 2, 1980
    Assignee: ACCO International Inc.
    Inventors: David C. Moore, Edward W. Cooper, Archibald Porteous