Granted Patent
Utility
US 5,376,749 · App. 08/131,720
Stabilized ammonium polysulfide solutions and process utilizing same
Inventors:
Richard F. Miller, Eugene Morselander
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Oct 5, 1993
Inventors
Richard F. Miller
Eugene Morselander
Assignee (at issue)
Western Company of North America
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.