Granted Patent
Utility
US 4,142,040 · App. 05/898,364
Processing polyesters to minimize acetaldehyde formation
Inventors:
Saleh A. Jabarin, Elizabeth Amie Lewis
Patented Case
View Patent ↗
Granted: Feb 27, 1979
Filed: Apr 21, 1978
Inventors
Saleh A. Jabarin
Elizabeth Amie Lewis
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.