Granted Patent
Utility
US 5,328,721 · App. 07/922,712
Process for manufacturing sodium carbonate perhydrate particles and coating them with sodium borosilicate
Inventors:
Basil A. Guiliano, William A. Hills, Charles V. Juelke
Patented Case
View Patent ↗
Granted: Jul 12, 1994
Filed: Jul 30, 1992
Inventors
Basil A. Guiliano
William A. Hills
Charles V. Juelke
Assignee (at issue)
FMC 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.