Granted Patent
Utility
US 5,496,865 · App. 08/349,396
Additive-charged porous carrier material
Inventors:
Ulrich Heese, Renato Salvel, Wolfgang Neumann
Patented Case
View Patent ↗
Granted: Mar 5, 1996
Filed: Dec 5, 1994
Inventors
Ulrich Heese
Renato Salvel
Wolfgang Neumann
Assignee (at issue)
BRUGG KABEL AG
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.