Patents by Inventor Donald E. Maron

Donald E. Maron 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).

  • Method of making an improved natural-textured ceiling tile
    Patent number: 4303703
    Abstract: A method of treating a fibrous panel having natural fissures in order to enhance and enlarge the natural fissures. The upper surface only of the fissured material is coated with a hardenable liquid abrasive resist which is subsequently hardened. This leaves the fissured areas unprotected by the resistant. The surface coated by the resist is abrasively treated to erode the fissures to enhance them while maintaining the planar surface treated with the resist unaffected by the abrasive treatment step.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: December 1, 1981
    Assignee: Armstrong World Industries
    Inventor: Donald E. Maron