Granted Patent
Utility
US 6,557,821 · App. 09/886,127
Crashproof instant-on valve
Inventors:
Erick Girouard, Mark Sajewycz
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Jun 22, 2001
Inventors
Erick Girouard
Mark Sajewycz
Assignee (at issue)
Teleflex GFI Control Systems L.P.
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.