Granted Patent
Utility
US 4,735,610 · App. 06/850,047
Disposable surgical fluid handling cassette
Inventors:
Tamer Akkas, Mark E. Steen, John W. Berkman
Patented Case
View Patent ↗
Granted: Apr 5, 1988
Filed: Apr 10, 1986
Inventors
Tamer Akkas
Mark E. Steen
John W. Berkman
Assignee (at issue)
Coopervision, 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.