Granted Patent
Utility
US 4,309,595 · App. 06/167,868
Hair dryer
Inventors:
Douglas G. Long, William R. Hemrich, Nicholas A. Shaw
Patented Case
View Patent ↗
Granted: Jan 5, 1982
Filed: Jul 14, 1980
Inventors
Douglas G. Long
William R. Hemrich
Nicholas A. Shaw
Assignee (at issue)
Sunbeam Corporation Limited
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.