Granted Patent
Utility
US 4,445,813 · App. 06/048,667
Method of forming seamless container
Inventors:
Surya K. Misra, Richard A. Openchowski
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Jun 14, 1979
Inventors
Surya K. Misra
Richard A. Openchowski
Assignee (at issue)
National Crane Corporation
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.