Granted Patent
Utility
US 5,035,992 · App. 07/443,547
Process for the stabilization of high-chloride crystals with modified crystal habit using bromide shells
Inventors:
William A. Houle, Thomas Peter Tufano
Patented Case
View Patent ↗
Granted: Jul 30, 1991
Filed: Nov 30, 1989
Inventors
William A. Houle
Thomas Peter Tufano
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.