Granted Patent
Utility
US 4,327,184 · App. 06/088,254
Inert-gas stripping and distillation apparatus
Inventors:
Steven A. Johnson, Junior D. Seader
Patented Case
View Patent ↗
Granted: Apr 27, 1982
Filed: Oct 25, 1979
Inventors
Steven A. Johnson
Junior D. Seader
Assignee (at issue)
THE UNIVERSITY OF UTAH
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.