Granted Patent
Utility
US 6,573,408 · App. 09/683,190
System and method for purifying cumene hydroperoxide cleavage products
Inventors:
John W. Fulmer, Pramod Kumbhar, Marakani Venkata Ramani, Bharat Singh
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Nov 29, 2001
Inventors
John W. Fulmer
Pramod Kumbhar
Marakani Venkata Ramani
Bharat Singh
Assignee (at issue)
General Electric 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.