Granted Patent
Utility
US 5,849,985 · App. 08/783,494
Use of persulfate to destroy haloform
Inventors:
Robert H. Tieckelmann, Dean S. Thorp, by Colleen Gagliardi, executor, Gale D. Downey
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Jan 14, 1997
Inventors
Robert H. Tieckelmann
Dean S. Thorp
by Colleen Gagliardi, executor
Gale D. Downey
Assignee (at issue)
FMC CORPORATION
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.