Granted Patent
Utility
US 6,669,239 · App. 10/141,243
Sealing device for a conduit passing through a wall
Inventors:
David C. Entringer, Timothy P. Wickman
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: May 8, 2002
Inventors
David C. Entringer
Timothy P. Wickman
Assignee (at issue)
Brunswick 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.