Granted Patent
Utility
US 5,491,409 · App. 07/973,515
Multiple yoke eddy current technique for detection of surface defects on metal components covered with marine growth
Inventors:
John H. Flora, Hubert L. Whaley
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Nov 9, 1992
Inventors
John H. Flora
Hubert L. Whaley
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.