Granted Patent
Utility
US 4,199,607 · App. 05/925,201
Process for carbonation of an aqueous medium
Inventors:
John D. Sherman, Jay R. Ronald
Patented Case
View Patent ↗
Granted: Apr 22, 1980
Filed: Jul 17, 1978
Inventors
John D. Sherman
Jay R. Ronald
Assignee (at issue)
Union Carbide 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.