Granted Patent
Utility
US 6,203,733 · App. 09/269,170
Process for producing granulated polytetrafluoroethylene powder
Inventors:
Atsushi Funaki, Teruo Takakura
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Mar 24, 1999
Inventors
Atsushi Funaki
Teruo Takakura
Assignee (at issue)
ASAHI GLASS CO., LTD.
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.