Patents by Inventor Charles B. Bonifield

Charles B. Bonifield 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).

  • Patent number: D267083
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: November 30, 1982
    Inventor: Charles B. Bonifield
  • Patent number: D286394
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: October 28, 1986
    Assignee: Coachmen Industries, Inc.
    Inventors: William P. Johnson, Charles B. Bonifield
  • Patent number: D297225
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: August 16, 1988
    Assignee: Coachmen Industries, Inc.
    Inventors: William P. Johnson, Charles B. Bonifield
  • Patent number: D298927
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: December 13, 1988
    Assignee: Coachmen Industries, Inc.
    Inventors: William P. Johnson, Charles B. Bonifield
  • Patent number: D298928
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: December 13, 1988
    Assignee: Coachmen Industries, Inc.
    Inventors: William P. Johnson, Charles B. Bonifield
  • Patent number: D298929
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: December 13, 1988
    Assignee: Coachmen Industries, Inc.
    Inventors: William P. Johnson, Charles B. Bonifield