Granted Patent
Utility
US 5,871,348 · App. 08/966,813
Method and apparatus for preventing formation of snowmen and removing lumps of coating in clinker coolers
Inventors:
Mark S. Terry, Oleg Geskin, Herbert Pingel
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Nov 10, 1997
Inventors
Mark S. Terry
Oleg Geskin
Herbert Pingel
Assignee (at issue)
Krupp Polysius AG
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.