Granted Patent
Utility
US 4,459,272 · App. 06/487,114
Dry carbonation process
Inventors:
John Krieg, Anthony E. Winston
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Apr 26, 1983
Inventors
John Krieg
Anthony E. Winston
Assignee (at issue)
Church & Dwight Co., 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.