Granted Patent
Utility
US 5,018,951 · App. 07/391,265
Portable electrical fan
Inventor:
Jui-Shang Wang
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Aug 9, 1989
Inventor
Jui-Shang Wang
Assignee (at issue)
Duracraft Corp.
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.