Granted Patent
Utility
US 5,192,607 · App. 07/922,419
Dispersant for carbon black-filled foam
Inventor:
Thomas G. Soukup
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: Jul 31, 1992
Inventor
Thomas G. Soukup
Assignees (at issue)
Celotex Corporation
Apache Building Products 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.