Carta-patente expirada
#21.1
Patente extinta em 02/05/2005
05/18/2010
RPI 2054
Application data
Number
PI9002047Type
Filing
Publication
The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.
Applicants
The Carborundum Company
US
Inventors
J. E. (pessoa física)
US
O. P. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 02/05/2005
05/18/2010
RPI 2054
#16.1
03/28/1995
RPI 1269
#13.1
10/11/1994
RPI 1245
#9.1
06/07/1994
RPI 1227
#4.1
10/13/1993
RPI 1193
#3.1
08/13/1991
RPI 1080
#2.1
08/14/1990
RPI 1028
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