Granted Patent
Utility
US 6,446,322 · App. 09/568,632
Method and apparatus for sealing canisters
Inventor:
Russell Edward Church
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: May 10, 2000
Inventor
Russell Edward Church
Assignee (at issue)
Tenneco Automotive Operating Company LLC
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.