Granted Patent
Utility
US 4,715,340 · App. 07/045,659
Reduction of HC emissions for vapor recovery purge systems
Inventors:
Jeffrey A. Cook, Douglas R. Hamburg
Patented Case
View Patent ↗
Granted: Dec 29, 1987
Filed: May 4, 1987
Inventors
Jeffrey A. Cook
Douglas R. Hamburg
Assignee (at issue)
Ford Motor Company
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.