Granted Patent
Utility
US 4,314,074 · App. 06/196,805
Process for producing methacrylic acid
Inventor:
Sargis Khoobiar
Patented Case
View Patent ↗
Granted: Feb 2, 1982
Filed: Oct 14, 1980
Inventor
Sargis Khoobiar
Assignee (at issue)
Atlantic Richfield Company
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.