Granted Patent
Utility
US 4,520,832 · App. 06/461,811
Vapor generating hair roller assembly
Inventor:
Jorgen Skovdal
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Jan 28, 1983
Inventor
Jorgen Skovdal
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.