Granted Patent
Utility
US 6,486,365 · App. 10/063,258
Production and purification of phenol: hydroxyacetone removal by hydrotalcite
Inventors:
John W. Fulmer, Bharat Singh, Pramod Kumbhar, Prashant Tatake, Umesh Krishna Hasyagar
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Apr 4, 2002
Inventors
John W. Fulmer
Bharat Singh
Pramod Kumbhar
Prashant Tatake
Umesh Krishna Hasyagar
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.