Granted Patent
Utility
US 6,346,350 · App. 09/296,682
Structurally stable fusible battery separators and method of making same
Inventors:
Ronald W. Call, Pierre C. Cook, Shawn E. Hux, Khuy V. Nguyen, Wei-Ching Yu
Patented Case
View Patent ↗
Granted: Feb 12, 2002
Filed: Apr 20, 1999
Inventors
Ronald W. Call
Pierre C. Cook
Shawn E. Hux
Khuy V. Nguyen
Wei-Ching Yu
Assignee (at issue)
Celgard, LLC
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.