Granted Patent
Utility
US 4,655,494 · App. 06/891,049
Plastic grain scoop
Inventors:
Harold O. Eads, Rudolph F. Planthaber
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Jul 30, 1986
Inventors
Harold O. Eads
Rudolph F. Planthaber
Assignee (at issue)
O. Ames Co.
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.