Granted Patent
Utility
US 4,363,626 · App. 06/149,950
Dental syringe
Inventors:
Manfred Schmidt, Gerd Hoyer, Hermann Leiberich, Helmut Pietschmann
Patented Case
View Patent ↗
Granted: Dec 14, 1982
Filed: May 15, 1980
Inventors
Manfred Schmidt
Gerd Hoyer
Hermann Leiberich
Helmut Pietschmann
Assignee (at issue)
Sybron 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.