Granted Patent
Utility
US 5,147,185 · App. 07/660,333
Pump apparatus for fluid sampling and collection, and the like
Inventors:
K. Lynn Niehaus, Kevin L. Newcomer, Steven C. Richter
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Feb 22, 1991
Inventors
K. Lynn Niehaus
Kevin L. Newcomer
Steven C. Richter
Assignee (at issue)
Q.E.D. Environmental Systems, 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.