Granted Patent
Utility
US 5,887,404 · App. 08/630,014
Precast concrete wall panel
Inventor:
Kenneth Robert Kreizinger
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Apr 9, 1996
Inventor
Kenneth Robert Kreizinger
Assignee (at issue)
Kreico Building Systems, 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.