Granted Patent
Utility
US 4,814,702 · App. 06/615,868
Process for accurately determining the position of the edges of support plates in steam generators
Inventors:
John M. Driggers, James Yeh
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: May 31, 1984
Inventors
John M. Driggers
James Yeh
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.