Granted Patent
Utility
US 5,643,211 · App. 08/608,799
Nozzle assembly having a frangible plunger
Inventors:
Peter L. Sadowski, Paul Mulhauser, David R. Schiff
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Feb 29, 1996
Inventors
Peter L. Sadowski
Paul Mulhauser
David R. Schiff
Assignee (at issue)
MEDI-JECT CORPORATION
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.