Granted Patent
Utility
US 5,158,043 · App. 07/622,060
High temperature application door installation
Inventor:
Jon Emsbo
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Dec 4, 1990
Inventor
Jon Emsbo
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.