Granted Patent
Utility
US 5,114,416 · App. 07/556,022
Fluid recovery system having an improved float valve
Inventors:
Theodore Karwoski, Steve A. Herweck, Steve Vail
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Jul 20, 1990
Inventors
Theodore Karwoski
Steve A. Herweck
Steve Vail
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.