Granted Patent
Utility
US 4,063,939 · App. 05/590,797
Composite turbine wheel and process for making same
Inventors:
Don M. Weaver, Steven H. Reichman
Patented Case
View Patent ↗
Granted: Dec 20, 1977
Filed: Jun 27, 1975
Inventors
Don M. Weaver
Steven H. Reichman
Assignee (at issue)
SPECIAL METALS CORPORATION
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.