Granted Patent
Utility
US 5,482,536 · App. 08/226,318
Apparatus for containment and scrubbing of toxic gas from a leakage location and method therefor
Inventors:
Eugene Y. Ngai, Lester S. Gerver
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Apr 12, 1994
Inventors
Eugene Y. Ngai
Lester S. Gerver
Assignee (at issue)
Solvay Specialty Chemicals, 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.