Granted Patent
Utility
US 4,536,018 · App. 06/428,541
Rubber-backed expansion joint
Inventor:
Adam J. Patarcity
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Sep 30, 1982
Inventor
Adam J. Patarcity
Assignee (at issue)
Kennecott Holdings Company
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.