Granted Patent
Utility
US 4,647,019 · App. 06/846,800
Very small refining vessel
Inventors:
Ian F. Masterson, Jonathan Jay Feinstein, Lanier Stambaugh
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Apr 1, 1986
Inventors
Ian F. Masterson
Jonathan Jay Feinstein
Lanier Stambaugh
Assignee (at issue)
Union Carbide 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.