Granted Patent
Utility
US 4,260,279 · App. 06/018,960
End seal for expansion joint sealing assembly
Inventor:
Richard D. Hein
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Mar 9, 1979
Inventor
Richard D. Hein
Assignee (at issue)
The General Tire & Rubber 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.