Granted Patent
Utility
US 5,326,137 · App. 08/035,665
Gas riser apparatus and method
Inventors:
James Lorenz, James L. Bucks, John C. Bucks
Patented Case
View Patent ↗
Granted: Jul 5, 1994
Filed: Mar 23, 1993
Inventors
James Lorenz
James L. Bucks
John C. Bucks
Assignee (at issue)
Perfection Holdings 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.