Granted Patent
Utility
US 6,352,267 · App. 09/347,158
Adjustaby sizeable ring seal
Inventor:
John E. Rode
Patented Case
View Patent ↗
Granted: Mar 5, 2002
Filed: Jul 2, 1999
Inventor
John E. Rode
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.