Granted Patent
Utility
US 4,836,148 · App. 07/205,718
Shrouding for engine cooling fans
Inventors:
John R. Savage, Robert C. Mellin
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Jun 13, 1988
Inventors
John R. Savage
Robert C. Mellin
Assignee (at issue)
General Motors 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.