Granted Patent
Utility
US 4,336,965 · App. 06/150,087
Expandable legrest for dental chairs
Inventor:
Herbert Lipp
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: May 15, 1980
Inventor
Herbert Lipp
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.