Granted Patent
Utility
US 4,467,106 · App. 06/368,741
Polyether/polyester glycol process
Inventors:
Sundar Rajan, Edmund F. Perozzi
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Apr 15, 1982
Inventors
Sundar Rajan
Edmund F. Perozzi
Assignee (at issue)
Ethyl Corporation
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.