Granted Patent
Utility
US 4,889,812 · App. 06/862,014
Bioreactor apparatus
Inventors:
Perry W. Guinn, Gary Mills, Robert A. Bedient, Martin Greeley
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: May 12, 1986
Inventors
Perry W. Guinn
Gary Mills
Robert A. Bedient
Martin Greeley
Assignee (at issue)
CD Medical
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.