Granted Patent
Utility
US 5,301,509 · App. 07/910,839
Method and apparatus for producing carbon dioxide pellets
Inventors:
Daniel L. Lloyd, Frederick C. Young
Patented Case
View Patent ↗
Granted: Apr 12, 1994
Filed: Jul 8, 1992
Inventors
Daniel L. Lloyd
Frederick C. Young
Assignee (at issue)
Cold Jet, 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.