Granted Patent
Utility
US 6,036,740 · App. 09/020,809
Concentrated gypsum slurries for use in drip irrigation
Inventors:
John C. Miller, Deborah L. Miller
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Feb 9, 1998
Inventors
John C. Miller
Deborah L. Miller
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.