Pedido de patente depositado
#2.1
07/04/1989
RPI 976
Application data
Number
PI8902363Type
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
EDN - Estireno do Nordeste S/A
BA, BR
Inventors
M. M. (pessoa física)
BR
M. B. (pessoa física)
BR
M. G. (pessoa física)
BR
P. L. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
07/04/1989
RPI 976
#21.1
Patente extinta em 23/05/2004
12/22/2009
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04/29/1997
RPI 1378
#13.1
03/11/1997
RPI 1371
#9.1
07/16/1996
RPI 1337
#6.1
05/23/1995
RPI 1277
#4.1
03/05/1991
RPI 1057
#3.1
11/27/1990
RPI 1043
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