Granted Patent
Utility
US 4,568,330 · App. 06/500,525
Cardioplegia delivery system with improved bubble trap
Inventors:
Dennis Kujawski, Patti L. Parrott
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Jun 2, 1983
Inventors
Dennis Kujawski
Patti L. Parrott
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.