Granted Patent
Utility
US 4,247,465 · App. 06/068,996
Preparation of alkylene carbonates from olefins
Inventors:
Jar-Lin Kao, Gregory A. Wheaton, Harold Shalit, Ming N. Sheng
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Aug 23, 1979
Inventors
Jar-Lin Kao
Gregory A. Wheaton
Harold Shalit
Ming N. Sheng
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.