Granted Patent
Utility
US 6,213,473 · App. 09/265,224
Double gas seal with coplanar pad faces
Inventor:
Alan O. Lebeck
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Mar 6, 1999
Inventor
Alan O. Lebeck
Assignee (at issue)
Utex Industries 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.