Granted Patent
Utility
US 4,035,999 · App. 05/656,758
Crop material roll forming method and machine
Inventors:
Jack W. Crane, Aquila D. Mast
Patented Case
View Patent ↗
Granted: Jul 19, 1977
Filed: Feb 9, 1976
Inventors
Jack W. Crane
Aquila D. Mast
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.