Granted Patent
Utility
US 5,531,454 · App. 08/365,705
Expandable gasket, sealed joint and method of forming same
Inventor:
Hans Borneby
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Dec 29, 1994
Inventor
Hans Borneby
Assignee (at issue)
INDIAN HEAD 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.