Granted Patent
Utility
US 5,731,081 · App. 08/340,404
Glass fiber evaporative cooler media with melamine formaldehyde binder
Inventor:
Esu S. Esu
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Nov 15, 1994
Inventor
Esu S. Esu
Assignee (at issue)
Hollinee, 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.