Granted Patent
Utility
US 5,286,516 · App. 07/666,552
Environmental sealing
Inventor:
William D. Uken
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Mar 7, 1991
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.