Granted Patent
Utility
US 4,358,355 · App. 06/298,614
Four component amide copolymer
Inventors:
Georgina Kalu, Michael Markus
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Sep 2, 1981
Inventors
Georgina Kalu
Michael Markus
Assignee (at issue)
ICI Australia Limited
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.