Granted Patent
Utility
US 6,241,977 · App. 09/337,995
Thermal protection of hair keratin
Inventors:
Roger McMullen, Janusz Jachowicz
Patented Case
View Patent ↗
Granted: Jun 5, 2001
Filed: Jun 22, 1999
Inventors
Roger McMullen
Janusz Jachowicz
Assignee (at issue)
ISP INVESTMENTS 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.