Granted Patent
Utility
US 6,457,511 · App. 09/729,522
Apparatus for handling foundry molds
Inventors:
Lynn C. Hackman, Larry Roberts
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Dec 4, 2000
Inventors
Lynn C. Hackman
Larry Roberts
Assignee (at issue)
Vulcan Engineering 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.