Granted Patent
Utility
US 4,393,162 · App. 06/378,119
Polyamides and copolyamides comprising -1,2-di(p-aminophenoxy) ethane moieties
Inventors:
Edward E. Paschke, C. Bruce Petty-Weeks
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: May 14, 1982
Inventors
Edward E. Paschke
C. Bruce Petty-Weeks
Assignee (at issue)
Standard Oil Company (Indiana)
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.