Granted Patent
Utility
US 4,341,538 · App. 05/934,957
Intravenous filter
Inventors:
Attila Vadnay, Mary K. Boomus
Patented Case
View Patent ↗
Granted: Jul 27, 1982
Filed: Aug 18, 1978
Inventors
Attila Vadnay
Mary K. Boomus
Assignee (at issue)
Gelman Instrument 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.