Granted Patent
Utility
US 4,786,474 · App. 06/883,094
Flow-through housing
Inventor:
Robert P. Cooper
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Jul 7, 1986
Inventor
Robert P. Cooper
Assignee (at issue)
Cardiovascular Devices, 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.