Granted Patent
Utility
US 4,614,231 · App. 06/774,867
Evaporators
Inventors:
Robert H. Proctor, Arthur G. Hobbs, Jr., Charles S. Argyle
Patented Case
View Patent ↗
Granted: Sep 30, 1986
Filed: Sep 11, 1985
Inventors
Robert H. Proctor
Arthur G. Hobbs, Jr.
Charles S. Argyle
Assignee (at issue)
Murray 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.