Granted Patent
Utility
US 4,495,039 · App. 06/405,784
Method for activating a pyrocarbon electrode tip
Inventors:
Osvaldo Cerise, Pietro Arru, Franco Vallana
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Aug 6, 1982
Inventors
Osvaldo Cerise
Pietro Arru
Franco Vallana
Assignee (at issue)
Sorin Biomedica S.p.A.
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.