Granted Patent
Utility
US 5,016,460 · App. 07/455,239
Durable method for producing finned tubing
Inventors:
Jimmy C. England, John Rodney Hensley, Frederick E. Moehling, Everett M. Roberts, Hugh-Hiram Ruble, Jr.
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Dec 22, 1989
Inventors
Jimmy C. England
John Rodney Hensley
Frederick E. Moehling
Everett M. Roberts
Hugh-Hiram Ruble, Jr.
Assignee (at issue)
INCO Alloys International, Inc.
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.