Granted Patent
Utility
US 6,421,486 · App. 09/346,192
Extruded buffer tubes comprising polyolefin resin based color concentrates for use in fiber optic cables
Inventors:
Omid Daneshvar, Sridhar K. Siddhamalli
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Jul 1, 1999
Inventors
Omid Daneshvar
Sridhar K. Siddhamalli
Assignee (at issue)
Fitel USA Corp.
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.