IP Library › Granted Patent US 4,972,662
Granted Patent Utility
US 4,972,662 · App. 07/355,638

Crop harvester aggregating apparatus

Inventors: Donald L. Korthuis, Scott A. Korthuis
Patented Case View Patent ↗
Granted: Nov 27, 1990 Filed: May 23, 1989
Inventors
Donald L. Korthuis
Scott A. Korthuis

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,972,662
App. No.
07/355,638
Filed
1989-05-23
Granted
1990-11-27
Kind
A