Granted Patent
Utility
US 5,267,585 · App. 07/907,478
Elastomeric flow control valve
Inventor:
Thomas C. Jones
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Jul 1, 1992
Inventor
Thomas C. Jones
Assignee (at issue)
BOC Health Care, 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.