Granted Patent
Utility
US 5,626,451 · App. 08/542,380
Washer for use with exterior insulation
Inventor:
William B. Seibert
Patented Case
View Patent ↗
Granted: May 6, 1997
Filed: Oct 12, 1995
Inventor
William B. Seibert
Assignee (at issue)
Wind-Lock 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.