Granted Patent
Utility
US 5,254,121 · App. 07/888,337
Method and device for removing concretions within human ducts
Inventors:
Bernard Manevitz, George Berci
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: May 22, 1992
Inventors
Bernard Manevitz
George Berci
Assignee (at issue)
Meditron Devices, 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.