Granted Patent
Utility
US 6,202,688 · App. 08/845,775
Instant-on vented tank valve with manual override and method of operation thereof
Inventor:
Neil M. Khadim
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Apr 28, 1997
Inventor
Neil M. Khadim
Assignee (at issue)
GFI Control Systems 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.