Carta-patente expirada
#21.1
Patente extinta em 17/11/2009
12/26/2012
RPI 2190
Application data
Number
PI8905818Type
Filing
Publication
The letters patent expired on 12/26/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
Nalco Chemical Company
US
Nalco Company
US
ONDEO Nalco Company
US
Inventors
A. G. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 17/11/2009
12/26/2012
RPI 2190
#25.4
Alterado de: ONDEO Nalco Company
12/13/2005
RPI 1823
#25.7
Alterada a sede do Titular conforme requerido na Petição nº 057675/RJ de 02/12/2004.
12/13/2005
RPI 1823
#25.4
Alterado de: Nalco Chemical Company
11/29/2005
RPI 1821
#25.7
Alterada a sede do Titular conforme requerido na Petição nº 057675/RJ de 02/12/2004.
11/29/2005
RPI 1821
#16.1
10/28/1997
RPI 1404
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09/23/1997
RPI 1399
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03/04/1997
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09/03/1991
RPI 1083
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04/17/1990
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