Granted Patent
Utility
US 4,239,512 · App. 05/877,005
Air washer particularly for paint spray booths
Inventor:
Frank L. Dobias
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: Feb 13, 1978
Inventor
Frank L. Dobias
Assignee (at issue)
Binks Manufacturing Company
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.