Carta-patente expirada
#21.1
Patente extinta em 23/11/2005
06/08/2010
RPI 2057
Application data
Number
PI9005941Type
Filing
Publication
The letters patent expired on 06/08/2010: 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: 06/08/2010. We update with every new RPI gazette, published weekly.
Applicants
Halliburton Company
US
Inventors
M. B. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 23/11/2005
06/08/2010
RPI 2057
#16.1
12/27/1994
RPI 1256
#13.1
09/27/1994
RPI 1243
#9.1
05/10/1994
RPI 1223
#4.1
03/16/1993
RPI 1163
#3.1
09/24/1991
RPI 1086
#2.1
05/07/1991
RPI 1066
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