Granted Patent
Utility
US 5,288,925 · App. 07/983,202
Method for inhibiting the deposition of ethylene-vinyl alcohol copolymer
Inventor:
Michael K. Poindexter
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Nov 30, 1992
Inventor
Michael K. Poindexter
Assignee (at issue)
Nalco Chemical Company
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.