Granted Patent
Utility
US 6,609,669 · App. 09/948,823
Hydraulic loading system for ball and ring pulverizers
Inventors:
Michael E. Rakocy, Rodney C. Pifer, David P. Houser
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Sep 7, 2001
Inventors
Michael E. Rakocy
Rodney C. Pifer
David P. Houser
Assignee (at issue)
The Babcock & Wilcox 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.