Granted Patent
Utility
US 5,550,752 · App. 08/279,910
Method and apparatus for estimating the rate at which a gas is generated within a plurality of zones
Inventor:
Clifford C. Federspiel
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Jul 25, 1994
Inventor
Clifford C. Federspiel
Assignee (at issue)
Johnson Service 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.