Granted Patent
Utility
US 4,915,947 · App. 06/928,085
Microencapsulated fungicide
Inventors:
Jean Thenard, Shyam B. Advani
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Nov 7, 1986
Inventors
Jean Thenard
Shyam B. Advani
Assignee (at issue)
Pennwalt Corporation
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.