Granted Patent
Utility
US 5,901,965 · App. 08/808,457
Bellows seal having balanced, de-coupled seal ring and seal ring shell
Inventors:
Yoram Ringer, David P. Casucci
Patented Case
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Granted: May 11, 1999
Filed: Feb 28, 1997
Inventors
Yoram Ringer
David P. Casucci
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.