Granted Patent
Utility
US 4,569,615 · App. 06/519,595
Expansion joint structures
Inventors:
Gerald L. Goldman, Joseph W. Gallagher, William A. Merlack
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: Aug 2, 1983
Inventors
Gerald L. Goldman
Joseph W. Gallagher
William A. Merlack
Assignee (at issue)
Columbia Chase 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.