Granted Patent
Utility
US 4,758,648 · App. 06/920,747
High speed cure sealant
Inventors:
Sidky D. Rizk, Harry W. Hsieh, John J. Prendergast
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Oct 20, 1986
Inventors
Sidky D. Rizk
Harry W. Hsieh
John J. Prendergast
Assignee (at issue)
Essex Specialty Products Inc.
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.