Granted Patent
Utility
US 5,514,593 · App. 08/283,344
Time averaged toxic metals monitoring method
Inventors:
Carl W. Townsend, John McHardy, Clifford A. Megerle
Patented Case
View Patent ↗
Granted: May 7, 1996
Filed: Aug 1, 1994
Inventors
Carl W. Townsend
John McHardy
Clifford A. Megerle
Assignee (at issue)
Hughes Aircraft 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.