Granted Patent
Utility
US 4,721,615 · App. 06/871,341
Calcium phosphates
Inventors:
Edward J. Griffith, William C. McDaniel
Patented Case
View Patent ↗
Granted: Jan 26, 1988
Filed: Jun 6, 1986
Inventors
Edward J. Griffith
William C. McDaniel
Assignee (at issue)
Monsanto 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.