Patents by Inventor Thurber H. Morrison

Thurber H. Morrison 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).

  • Wall-mounted smoke detector
    Patent number: D246635
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: December 13, 1977
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Robert W. Becker
  • Thermostatic electric connector plug
    Patent number: D248017
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: May 30, 1978
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Robert W. Becker
  • Electric cooking utensil
    Patent number: D250448
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: December 5, 1978
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Robert S. Huff
  • Electric mini-oven with removable cover
    Patent number: D252665
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: August 21, 1979
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Francis J. Greb
  • Electric pressure cooker
    Patent number: D253388
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: November 13, 1979
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, James P. Stevens
  • Pressure cooker regulator
    Patent number: D253746
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: December 25, 1979
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, James P. Stevens
  • Pressure cooker
    Patent number: D253867
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: January 8, 1980
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, James P. Stevens
  • Pressure cooker regulator
    Patent number: D254769
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: April 22, 1980
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, James P. Stevens
  • Cooking appliance handle
    Patent number: D255008
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: May 20, 1980
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Robert W. Becker
  • Hot air corn popper
    Patent number: D256019
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: July 22, 1980
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Wayne J. Franek
  • Egg cooker
    Patent number: D261594
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: November 3, 1981
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Francis J. Greb
  • Portable radiant electric heater
    Patent number: D267424
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: December 28, 1982
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Robert W. Becker, Robert S. Huff
  • Portable radiant electric heater
    Patent number: D271132
    Type: Grant
    Filed: April 8, 1981
    Date of Patent: October 25, 1983
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, Robert W. Becker, Robert S. Huff
  • Automatic temperature sensing electric heater
    Patent number: D275029
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: August 7, 1984
    Assignee: National Presto Industries, Inc.
    Inventors: Melvin H. Boldt, Thurber H. Morrison, James P. Stevens
  • Food slicer
    Patent number: D275441
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: September 11, 1984
    Assignee: National Presto Industries, Inc.
    Inventors: Robert W. Becker, Thurber H. Morrison, Robert S. Huff, Brent W. Dressel
  • Hot air popcorn popper
    Patent number: D279070
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: June 4, 1985
    Assignee: National Presto Industries, Inc.
    Inventors: Thurber H. Morrison, Robert W. Becker, Robert S. Huff