Granted Patent
Utility
US 5,650,609 · App. 08/441,247
Seed monitoring system for counting seeds as they are dispensed through a seed planting tube
Inventors:
Karl-Heinz O. Mertins, Barry D. Batcheller, Douglas L. Hauck
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: May 15, 1995
Inventors
Karl-Heinz O. Mertins
Barry D. Batcheller
Douglas L. Hauck
Assignee (at issue)
Phoenix International Holdings, 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.