Granted Patent
Utility
US 4,849,858 · App. 06/921,716
Composite heat transfer means
Inventors:
Thomas F. Grapes, Timothy M. Fertig, Mark S. Schroeder
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Oct 20, 1986
Inventors
Thomas F. Grapes
Timothy M. Fertig
Mark S. Schroeder
Assignee (at issue)
Westinghouse Electric Company 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.