Granted Patent
Utility
US 5,371,126 · App. 08/047,864
Processing aid for paper making
Inventor:
Ralph H. Strickler
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Apr 14, 1993
Inventor
Ralph H. Strickler
Assignee (at issue)
Sandoz AG
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.