Granted Patent
Utility
US 5,634,962 · App. 08/584,619
Method for removing hazardous gases from enclosed structures
Inventors:
Timothy W. Trahan, Robert R. Cradeur, Nishanath K. Mehta
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: Jan 11, 1996
Inventors
Timothy W. Trahan
Robert R. Cradeur
Nishanath K. Mehta
Assignee (at issue)
Servi-Tech, Inc
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.