Granted Patent
Utility
US 4,593,763 · App. 06/642,148
Carbon dioxide well injection method
Inventor:
Edward Burke
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Aug 20, 1984
Inventor
Edward Burke
Assignee (at issue)
Grayco Specialist Tank, 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.