Granted Patent
Utility
US 5,887,308 · App. 08/901,364
Expansion joint system with seismic accommodation
Inventor:
Wayne Walter
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Jul 28, 1997
Inventor
Wayne Walter
Assignee (at issue)
Watson Bowman Acme 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.