Granted Patent
Utility
US 5,847,291 · App. 08/803,018
Air sampler with trap
Inventors:
Thomas B. Green, Larry J. DaPrato, Michael A. Hill, Valerie J. Naughton, Edmund T. Lewis, Todd A. Wolsing, Joseph A. Borer
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Feb 21, 1997
Inventors
Thomas B. Green
Larry J. DaPrato
Michael A. Hill
Valerie J. Naughton
Edmund T. Lewis
Todd A. Wolsing
Joseph A. Borer
Assignee (at issue)
Tekmar 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.