Granted Patent
Utility
US 4,375,359 · App. 06/090,732
Water based fireside additive
Inventors:
Stuart R. Chapman, F. Ross Pollard
Patented Case
View Patent ↗
Granted: Mar 1, 1983
Filed: Nov 2, 1979
Inventors
Stuart R. Chapman
F. Ross Pollard
Assignee (at issue)
Dearborn Chemical Company Limited
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.