Granted Patent
Utility
US 4,365,092 · App. 05/924,900
Process for the preparation of methacrylamide from methylmethacrylate
Inventor:
Kenneth E. Harwell
Patented Case
View Patent ↗
Granted: Dec 21, 1982
Filed: Jul 13, 1978
Inventor
Kenneth E. Harwell
Assignee (at issue)
Cook Paint and Varnish Company
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.