Granted Patent
Utility
US 4,645,584 · App. 06/756,929
Mesophase pitch feedstock from hydrotreated decant oils
Inventors:
Rostislav Didchenko, Irwin C. Lewis
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Jul 19, 1985
Inventors
Rostislav Didchenko
Irwin C. Lewis
Assignee (at issue)
Amoco 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.