Granted Patent
Utility
US 5,219,465 · App. 07/666,339
Sulfur coated fertilizers and process for the preparation thereof
Inventors:
Harvey M. Goertz, Richard J. Timmons, George R. McVey
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Mar 8, 1991
Inventors
Harvey M. Goertz
Richard J. Timmons
George R. McVey
Assignee (at issue)
The O. M. Scott and Sons 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.