Granted Patent
Utility
US 6,287,632 · App. 09/504,921
Rotolining process using fluoro polymer powder
Inventors:
Takao Nishio, Tsuneo Aida
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Feb 16, 2000
Inventors
Takao Nishio
Tsuneo Aida
Assignee (at issue)
DuPont Mitsui Flurochemicals
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.