Granted Patent
Utility
US 5,141,504 · App. 07/385,823
Fluid recovery system with stopcock suction control
Inventors:
Steve A. Herweck, Theodore Karwoski
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Jul 26, 1989
Inventors
Steve A. Herweck
Theodore Karwoski
Assignee (at issue)
ATRIUM MEDICAL CORPORATION
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.