Granted Patent
Utility
US 6,017,936 · App. 09/032,959
Method for producing particles of pyrithione salts and particles so produced
Inventors:
George Polson, Richard H. Dumas, Rahim Hani
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Mar 2, 1998
Inventors
George Polson
Richard H. Dumas
Rahim Hani
Assignee (at issue)
Arch 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.