Granted Patent
Utility
US 4,526,821 · App. 06/059,374
Multi-layer container and method of making same
Inventors:
Robert J. McHenry, Robert P. Seebohm
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Jul 20, 1979
Inventors
Robert J. McHenry
Robert P. Seebohm
Assignee (at issue)
American Can Company
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.