Granted Patent
Utility
US 4,893,608 · App. 07/215,272
Furnace roof jack with pivoting flashing plate
Inventor:
Greg K. Reaser
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Jul 5, 1988
Inventor
Greg K. Reaser
Assignee (at issue)
Coleman Heating & Air Conditioning Products, 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.