Granted Patent
Utility
US 5,186,775 · App. 07/650,192
Method of fabrication of a container for bulk material
Inventors:
John S. Cullen, Samuel A. Incorvia, Christopher S. Nigon, Frederick A. Boczkowski
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Feb 4, 1991
Inventors
John S. Cullen
Samuel A. Incorvia
Christopher S. Nigon
Frederick A. Boczkowski
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.