Granted Patent
Utility
US 5,601,668 · App. 08/448,007
Environmental sealing
Inventor:
William D. Uken
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: May 23, 1995
Inventor
William D. Uken
Assignee (at issue)
Raychem Limited
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.