Patents by Inventor Steven J. Sheftel

Steven J. Sheftel 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: D273544
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: April 24, 1984
    Assignee: Crawford Products, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D294221
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: February 16, 1988
    Assignee: Crawford Products, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D334813
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: April 13, 1993
    Assignee: Crawford Products, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D334814
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: April 13, 1993
    Assignee: Crawford Products, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D338820
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: August 31, 1993
    Assignee: Crawford Products, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D345472
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: March 29, 1994
    Assignee: Crawford Products, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D352788
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: November 22, 1994
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventor: Steven J. Sheftel
  • Patent number: D360953
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: August 1, 1995
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D361390
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: August 15, 1995
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D365007
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: December 12, 1995
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D366319
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: January 16, 1996
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D379236
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: May 13, 1997
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D380666
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: July 8, 1997
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D383052
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: September 2, 1997
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D392814
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: March 31, 1998
    Assignee: American Manufacturing Company, Inc.
    Inventor: Steven J. Sheftel