Granted Patent
Utility
US 3,964,980 · App. 05/561,515
Process for the recovery of ethylene oxide
Inventor:
Brian Ozero
Patented Case
View Patent ↗
Granted: Jun 22, 1976
Filed: Mar 24, 1975
Inventor
Brian Ozero
Assignee (at issue)
Halcon International, 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.