Granted Patent
Utility
US 4,244,822 · App. 06/065,245
Industrial technique magnetic apparatus
Inventor:
John R Slavens
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Aug 9, 1979
Inventor
John R Slavens
Assignee (at issue)
The Babcock & Wilcox Company
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.