Granted Patent
Utility
US 5,338,458 · App. 08/007,146
Method for removing chloramine with catalytic carbon
Inventors:
Robert V. Carrubba, Richerd A Hayden, Thomas M. Matviya
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Jan 21, 1993
Inventors
Robert V. Carrubba
Richerd A Hayden
Thomas M. Matviya
Assignee (at issue)
CALGON CARBON CORPORATION
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.