Granted Patent
Utility
US 5,936,030 · App. 08/836,819
Polyether copolymers and a process for preparing them
Inventors:
Christian V. Nicholas, Malcolm D. Purbrick
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Aug 14, 1997
Inventors
Christian V. Nicholas
Malcolm D. Purbrick
Assignee (at issue)
Nanosystems
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.