Granted Patent
Utility
US 4,916,888 · App. 07/313,426
Method of dispensing a substance onto a crop material at a controlled rate
Inventors:
Ronald T. Sheehan, Shaun A. Seymour
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Feb 22, 1989
Inventors
Ronald T. Sheehan
Shaun A. Seymour
Assignee (at issue)
Ford New Holland, Inc.
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.