Granted Patent
Utility
US 5,387,481 · App. 08/031,452
Method of preparing a switchable shield
Inventors:
Kenneth C. Radford, Deborah P. Partlow
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Mar 15, 1993
Inventors
Kenneth C. Radford
Deborah P. Partlow
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.