Granted Patent
Utility
US 4,098,047 · App. 05/802,836
Joint sealing method
Inventor:
Victor Weber
Patented Case
View Patent ↗
Granted: Jul 4, 1978
Filed: Jun 2, 1977
Inventor
Victor Weber
Assignee (at issue)
W. R. Grace & Co.
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.