Granted Patent
Utility
US 4,429,153 · App. 06/339,733
Halogenated esters
Inventor:
Nazim Punja
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Jan 15, 1982
Inventor
Nazim Punja
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES 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.