Granted Patent
Utility
US 5,492,279 · App. 08/313,959
Variable spring rate pulverizer apparatus
Inventor:
Gregory R. Strich
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Sep 28, 1994
Inventor
Gregory R. Strich
Assignee (at issue)
Combustion Engineering, 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.