Granted Patent
Utility
US 4,210,477 · App. 05/921,092
Tube forming method
Inventors:
William Gillespie, Jr., Hal L. Inglis
Patented Case
View Patent ↗
Granted: Jul 1, 1980
Filed: Jun 30, 1978
Inventors
William Gillespie, Jr.
Hal L. Inglis
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.