Patents by Inventor Norman Hedstrom

Norman Hedstrom 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).

  • Document storage system
    Patent number: 4037895
    Abstract: A cabinet is provided which comprises a pull-out shelf, means for supporting books on the shelf so that they can be opened and read without removing them from the shelf, and means for automatically closing the books at the ends of the shelf when the shelf is pushed back into the cabinet.
    Type: Grant
    Filed: March 23, 1976
    Date of Patent: July 26, 1977
    Assignee: Wright Line Inc.
    Inventors: Norman Hedstrom, David Wright, Jerome O'Toole
  • Document holder
    Patent number: D248484
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: July 11, 1978
    Assignee: Wright Line Inc.
    Inventors: Norman Hedstrom, David M. Wright, Jerome O'Toole
  • Document holder
    Patent number: D250715
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: January 2, 1979
    Assignee: Wright Line Inc.
    Inventors: Norman Hedstrom, David M. Wright, Jerome O'Toole