Granted Patent
Utility
US 4,881,559 · App. 06/934,081
Hair curling system
Inventor:
Lai Kin
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Nov 24, 1986
Inventor
Lai Kin
Assignee (at issue)
Windmere 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.