Granted Patent
Utility
US 6,067,712 · App. 08/814,163
Heat exchange tube with embossed enhancement
Inventors:
Myron R. Randlett, Ralph L. Webb, Louay M. Chamra
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Mar 10, 1997
Inventors
Myron R. Randlett
Ralph L. Webb
Louay M. Chamra
Assignee (at issue)
Olin 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.