Granted Patent
Utility
US 4,728,496 · App. 06/868,353
Apparatus and method for control and sterilization of fluid flow
Inventors:
Preben A. Petersen, Jan Sternby
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: May 29, 1986
Inventors
Preben A. Petersen
Jan Sternby
Assignee (at issue)
Gambro AB
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.