Granted Patent
Utility
US 6,676,136 · App. 09/933,959
Flexible waterstop ring
Inventors:
Michael R. Miller, James W. Skinner
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Aug 21, 2001
Inventors
Michael R. Miller
James W. Skinner
Assignee (at issue)
Press-Seal Gasket Corporation
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.