Granted Patent
Utility
US 6,117,202 · App. 09/273,377
Gasket seal for filter unit
Inventor:
Lawrence E. Wetzel
Patented Case
View Patent ↗
Granted: Sep 12, 2000
Filed: Mar 22, 1999
Inventor
Lawrence E. Wetzel
Assignee (at issue)
Floratech 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.