Granted Patent
Utility
US 6,698,498 · App. 09/958,187
Casting strip
Inventors:
John Albert Ziegelaar, Heiji Kato
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Oct 24, 2001
Inventors
John Albert Ziegelaar
Heiji Kato
Assignee (at issue)
Castrip, LLC
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.