Granted Patent
Utility
US 6,138,578 · App. 09/024,810
Freight container ventilation system
Inventors:
James A. Cowan, Michael D. Gaikowski, John K. Deveikis, Richard J. Kloster
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Feb 17, 1998
Inventors
James A. Cowan
Michael D. Gaikowski
John K. Deveikis
Richard J. Kloster
Assignee (at issue)
General Electric Railcar Services 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.