Patents by Inventor John Ewig

John Ewig 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).

  • Spring powered stapler
    Patent number: 4184620
    Abstract: A stapler having a frame formed in two parts of high density polymer, wherein the major support and guide elements of the stapler are integrally formed with the two parts.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: January 22, 1980
    Assignee: Parker Manufacturing Company
    Inventor: John Ewig
  • Rivet gun
    Patent number: D256658
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: September 2, 1980
    Assignee: Parker Manufacturing Company
    Inventor: John Ewig