Granted Patent
Utility
US 4,590,010 · App. 06/724,474
Substituted naphthoic acid process
Inventors:
Venkataraman Ramachandran, Robert I. Davidson, John Maloney
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Apr 18, 1985
Inventors
Venkataraman Ramachandran
Robert I. Davidson
John Maloney
Assignee (at issue)
Ethyl Corporation
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.