Granted Patent
Utility
US 5,272,191 · App. 07/748,139
Cold water soluble films and film forming compositions
Inventors:
Nagui Ibrahim, Richard M. Herbert
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Aug 21, 1991
Inventors
Nagui Ibrahim
Richard M. Herbert
Assignee (at issue)
FMC CORPORATION
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.