Granted Patent
Utility
US 5,236,309 · App. 07/693,256
Turbine blade assembly
Inventors:
Gary S. Van Heusden, Thomas A. Brown, Lloyd W. Smith, Ralph R. Barber, Robert M. Lloyd, Phillip R. Ratliff, Wilmott G. Brown, Albert F. Le Breton, David A. Lutz
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Apr 29, 1991
Inventors
Gary S. Van Heusden
Thomas A. Brown
Lloyd W. Smith
Ralph R. Barber
Robert M. Lloyd
Phillip R. Ratliff
Wilmott G. Brown
Albert F. Le Breton
David A. Lutz
Assignee (at issue)
Westinghouse Electric Company LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.