Granted Patent
Utility
US 4,534,954 · App. 06/585,640
Sodium hydrosulfite slurries
Inventors:
Edwin D. Little, Karsten R. Minzghor
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Mar 8, 1984
Inventors
Edwin D. Little
Karsten R. Minzghor
Assignee (at issue)
Virginia Chemicals 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.