Granted Patent
Utility
US 4,894,342 · App. 06/909,962
Bioreactor system
Inventors:
Perry W. Guinn, Gary Mills
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Sep 22, 1986
Inventors
Perry W. Guinn
Gary Mills
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.