Granted Patent
Utility
US 4,552,554 · App. 06/624,053
Introducing catheter
Inventors:
Arnold S. Gould, Gary Sawicki, Michael Ciannella
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Jun 25, 1984
Inventors
Arnold S. Gould
Gary Sawicki
Michael Ciannella
Assignee (at issue)
Medi-Tech Co., Ltd.
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.