Granted Patent
Utility
US 5,229,355 · App. 07/843,025
Leaching inhibition of crop treating chemicals with polymers
Inventors:
Ratan K. Chaudhuri, Kolazi S. Narayanan
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Feb 28, 1992
Inventors
Ratan K. Chaudhuri
Kolazi S. Narayanan
Assignee (at issue)
ISP INVESTMENTS LLC
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.