Granted Patent
Utility
US 5,320,758 · App. 08/085,007
Method of recycling amine saponifiers used in cleaning electronic circuit boards
Inventor:
Anthony E. Winston
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Jun 29, 1993
Inventor
Anthony E. Winston
Assignee (at issue)
Church & Dwight Co., 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.