Granted Patent
Utility
US 4,493,138 · App. 06/497,214
Vapor cooled electrical inductive apparatus
Inventors:
Richard D. Gibbs, Roger C. Johnson
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: May 25, 1983
Inventors
Richard D. Gibbs
Roger C. Johnson
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.