Pedido de patente depositado
#2.1
07/04/1989
RPI 976
Application data
Number
PI8902347Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
Alcan International Limited
CA
Inventors
A. G. (pessoa física)
CA
B. G. (pessoa física)
CA
M. T. (pessoa física)
CA
M. A. (pessoa física)
CA
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
07/04/1989
RPI 976
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era F27D 23/04.
03/27/2018
RPI 2464
#21.1
Patente extinta em 19/05/2004
12/22/2009
RPI 2033
#16.1
05/31/1994
RPI 1226
#13.1
02/08/1994
RPI 1210
#9.1
08/24/1993
RPI 1186
#4.1
06/16/1992
RPI 1124
#3.1
03/01/1990
RPI 1007
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