Granted Patent
Utility
US 4,273,012 · App. 06/109,946
Foam specimen apparatus and method
Inventors:
Edson C. Bates, Jeanne A. King
Patented Case
View Patent ↗
Granted: Jun 16, 1981
Filed: Jan 7, 1980
Inventors
Edson C. Bates
Jeanne A. King
Assignee (at issue)
Owens-Illinois Inc.
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.