Granted Patent
Utility
US 4,243,608 · App. 06/038,593
3-(4-Hydroxyphenyl)pentanedioic acid, monohydrazide, derivatives and analogs
Inventors:
Ravi K. Varma, B. Richard Vogt
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: May 14, 1979
Inventors
Ravi K. Varma
B. Richard Vogt
Assignee (at issue)
E.R. SQUIBB & SONS. INC.
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.