Granted Patent
Utility
US 4,556,521 · App. 06/499,359
Evaporative cooler with high loft cooler pad
Inventor:
Joseph F. Baigas, Jr.
Patented Case
View Patent ↗
Granted: Dec 3, 1985
Filed: May 31, 1983
Inventor
Joseph F. Baigas, Jr.
Assignee (at issue)
Hobbs Bonded Fibers
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.