Granted Patent
Utility
US 3,934,650 · App. 05/508,253
Recovery of natural gas during solution mining of an underground salt deposit
Inventor:
Robert G. J. LaFortune
Patented Case
View Patent ↗
Granted: Jan 27, 1976
Filed: Sep 23, 1974
Inventor
Robert G. J. LaFortune
Assignee (at issue)
Diamond Shamrock Corporation
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.