Granted Patent
Utility
US 6,491,513 · App. 09/620,294
Internal core lifter and a mold incorporating the same
Inventor:
Douglas Schneider
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Jul 20, 2000
Inventor
Douglas Schneider
Assignee (at issue)
Omni Mold Systems
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.