Granted Patent
Utility
US 5,339,700 · App. 07/808,530
Sample collector
Inventors:
Paul George Wright, Frederick A. Nabity
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Dec 16, 1991
Inventors
Paul George Wright
Frederick A. Nabity
Assignee (at issue)
Isco, Inc.
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.