Granted Patent
Utility
US 4,616,484 · App. 06/676,679
Vehicle refrigerant heating and cooling system
Inventors:
Syed A. Mehdi, William E. Zieske, David Ward
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Nov 30, 1984
Inventors
Syed A. Mehdi
William E. Zieske
David Ward
Assignee (at issue)
KYSOR INDUSTRIAL 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.