Granted Patent
Utility
US 5,310,945 · App. 07/996,218
Process for preparing para-dioxanones
Inventor:
Thomas Clayton Forschner
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Dec 23, 1992
Inventor
Thomas Clayton Forschner
Assignee (at issue)
SHELL OIL 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.