Granted Patent
Utility
US 6,338,736 · App. 09/180,398
Strengthened implant for bodily ducts
Inventors:
Christoph Boosfeld, Franz Freudenthal
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Jan 22, 1999
Inventors
Christoph Boosfeld
Franz Freudenthal
Assignee (at issue)
pfm Produkte für die Medizin Aktiengesellschaft
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.