Granted Patent
Utility
US 4,974,422 · App. 07/490,789
Evaporative condenser with fogging nozzle
Inventor:
Erich J. Kocher
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Mar 8, 1990
Inventor
Erich J. Kocher
Assignee (at issue)
Vilter Manufacturing 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.