Patents by Inventor Donald A. Kaufmann

Donald A. Kaufmann 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: D258039
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: January 27, 1981
    Assignee: Florists' Transworld Delivery Association
    Inventor: Donald A. Kaufmann
  • Patent number: D262273
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: December 15, 1981
    Assignee: Florists' Transworld Delivery Association
    Inventor: Donald A. Kaufmann
  • Patent number: D266916
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: November 16, 1982
    Assignee: Florists' Transworld Delivery Association
    Inventor: Donald A. Kaufmann
  • Patent number: D273138
    Type: Grant
    Filed: August 25, 1981
    Date of Patent: March 20, 1984
    Assignee: Florists' Transworld Delivery Assn.
    Inventor: Donald A. Kaufmann