Granted Patent
Utility
US 5,400,525 · App. 08/182,753
Flame cone for grain bin dryer
Inventor:
Randall E. SHELEY
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Jan 14, 1994
Inventor
Randall E. SHELEY
Assignee (at issue)
Grain Systems, Inc.
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.