Granted Patent
Utility
US 4,963,395 · App. 07/472,687
Method of chromizing large size articles
Inventors:
Everett C. Lewis, Harley A. Grant
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Jan 31, 1990
Inventors
Everett C. Lewis
Harley A. Grant
Assignee (at issue)
Combustion Engineering, Inc.
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.