Granted Patent
Utility
US 5,919,031 · App. 08/897,765
Coolable blade
Inventors:
Kenneth B. Hall, Bruce V. Johnson, Bernhard Weigand, Pey-Shey Wu
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Jul 21, 1997
Inventors
Kenneth B. Hall
Bruce V. Johnson
Bernhard Weigand
Pey-Shey Wu
Assignee (at issue)
Asea Brown Boveri, S.A.
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.