Granted Patent
Utility
US 4,275,255 · App. 06/112,484
Conversion of mixed butanes into gasoline
Inventor:
Bipin V. Vora
Patented Case
View Patent ↗
Granted: Jun 23, 1981
Filed: Jan 16, 1980
Inventor
Bipin V. Vora
Assignee (at issue)
UOP LLC
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.