Granted Patent
Utility
US 5,530,987 · App. 07/919,471
Condensate drain controller
Inventors:
David P. Piccirillo, John T. Huston
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Jul 24, 1992
Inventors
David P. Piccirillo
John T. Huston
Assignee (at issue)
The Babcock & Wilcox 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.