Granted Patent
Utility
US 5,546,673 · App. 08/444,705
Plastic pellet dryer control system equipped with a temperature protection device for the heating unit
Inventors:
Jon J. Weagraff, Kaihan Tavakoli
Patented Case
View Patent ↗
Granted: Aug 20, 1996
Filed: May 19, 1995
Inventors
Jon J. Weagraff
Kaihan Tavakoli
Assignee (at issue)
CONAIR LLC
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.