Granted Patent
Utility
US 4,731,054 · App. 06/877,228
Medical repository probe
Inventors:
Werner Billeter, Peter Bittmann
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Jun 20, 1986
Inventors
Werner Billeter
Peter Bittmann
Assignee (at issue)
Sulzer Brothers Limited
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.