Granted Patent
Utility
US 4,456,020 · App. 06/563,091
Adjustable hair curler
Inventor:
Gary Van Deursen
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Dec 19, 1983
Inventor
Gary Van Deursen
Assignee (at issue)
General Electric Company
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.