Patents by Inventor Dennis F. Anders

Dennis F. Anders 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).

  • Horizontal sliding window with removable fixed sash
    Patent number: 4554770
    Abstract: A thermally insulating window having two spaced parallel removable sashes in side by side relation, closely spaced apart meeting rails on the sashes and an intermediate rail member sealing the space between the meeting rails.
    Type: Grant
    Filed: January 11, 1984
    Date of Patent: November 26, 1985
    Assignee: National Gypsum Company
    Inventor: Dennis F. Anders