Granted Patent
Utility
US 5,691,487 · App. 08/556,666
Coupling of air samples to a sampler
Inventors:
Thomas B. Green, Todd A. Wolsing, Joseph A. Borer
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Nov 13, 1995
Inventors
Thomas B. Green
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.