Granted Patent
Utility
US 4,608,065 · App. 06/719,518
Moisture removal for stack gas monitor
Inventor:
Michael Lai
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Apr 3, 1985
Inventor
Michael Lai
Assignee (at issue)
Champion International 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.