Granted Patent
Utility
US 4,544,705 · App. 06/564,024
Aromatic polyformals
Inventor:
Louis M. Maresca
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Dec 21, 1983
Inventor
Louis M. Maresca
Assignee (at issue)
Union Carbide Corporation
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.