Granted Patent
Utility
US 6,270,740 · App. 09/392,443
Method of producing modified sodium carbonate crystals for the production of sodium bicarbonate
Inventors:
James M. Shepard, Victor Braman, Kenneth Douglas Boyle, Carter Moore
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Sep 9, 1999
Inventors
James M. Shepard
Victor Braman
Kenneth Douglas Boyle
Carter Moore
Assignee (at issue)
General Chemical 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.