Granted Patent
Utility
US 4,584,462 · App. 06/671,343
Hairsetter for electrically heating flexible hair curlers
Inventor:
Herbert M. Morrison
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Nov 14, 1984
Inventor
Herbert M. Morrison
Assignee (at issue)
Clairol Incorporated
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.