Granted Patent
Utility
US 4,690,948 · App. 06/936,715
Halogenated resorcylic acid lactone derivatives
Inventor:
Jing Lu
Patented Case
View Patent ↗
Granted: Sep 1, 1987
Filed: Dec 1, 1986
Inventor
Jing Lu
Assignee (at issue)
International Minerals & Chemical Corp.
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.