Granted Patent
Utility
US 5,655,357 · App. 08/434,039
Exhaust flow rate vacuum sensor
Inventor:
Hanns J. Kristen
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: May 2, 1995
Inventor
Hanns J. Kristen
Assignee (at issue)
Tilia International, Inc.
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.