Granted Patent
Utility
US 5,767,448 · App. 08/723,055
Sealing device
Inventor:
Wesley Dong
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: Sep 30, 1996
Inventor
Wesley Dong
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.