Publicação do pedido de patente
#3.1
12/05/1989
RPI 998
Application data
Number
PI8901955Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 12/05/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
G. R. (pessoa física)
NL
J. B. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/05/1989
RPI 998
#2.1
05/30/1989
RPI 971
#21.1
Patente extinta em 25/04/2004
12/15/2009
RPI 2032
#16.1
04/29/1997
RPI 1378
#13.1
03/11/1997
RPI 1371
#9.1
07/16/1996
RPI 1337
#6.1
09/13/1994
RPI 1241
#4.1
12/24/1991
RPI 1099
From the same holder
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