Granted Patent
Utility
US 4,207,221 · App. 05/864,977
Degradable plastic composition containing unsaturated wax
Inventors:
John W. Tobias, Lynn J. Taylor
Patented Case
View Patent ↗
Granted: Jun 10, 1980
Filed: Dec 27, 1977
Inventors
John W. Tobias
Lynn J. Taylor
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.