Granted Patent
Utility
US 4,183,948 · App. 05/869,615
Halogenated esters
Inventor:
Roger K. Huff
Patented Case
View Patent ↗
Granted: Jan 15, 1980
Filed: Jan 16, 1978
Inventor
Roger K. Huff
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.