Granted Patent
Utility
US 4,511,476 · App. 06/458,273
Method for preventing compaction in sorbent beds
Inventor:
Karlheinz W. R. Schoenrock
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Jan 17, 1983
Inventor
Karlheinz W. R. Schoenrock
Assignee (at issue)
The Amalgamated Sugar Company, LLC.
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.