Granted Patent
Utility
US 4,815,265 · App. 07/072,968
Harvesting header having timed double sickle toothed belt drive
Inventors:
Ronald K. Guinn, Cecil L. Case
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Jul 14, 1987
Inventors
Ronald K. Guinn
Cecil L. Case
Assignee (at issue)
Hay & Forage Industries
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.