Granted Patent
Utility
US 4,371,223 · App. 06/149,572
Cabinet door hinge
Inventors:
Hans C. Grunert, Heinz Becker
Patented Case
View Patent ↗
Granted: Feb 1, 1983
Filed: May 14, 1980
Inventors
Hans C. Grunert
Heinz Becker
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.