Granted Patent
Utility
US 5,880,221 · App. 08/800,694
Redistribution of polyphenylene ethers and polyphenylene ethers with novel structure
Inventors:
Juraj Liska, Hubertus Van Aert, Gert De Wit
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Feb 14, 1997
Inventors
Juraj Liska
Hubertus Van Aert
Gert De Wit
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.