Publicação do pedido de patente
#3.1
10/31/1989
RPI 993
Application data
Number
PI8901205Type
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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
J. N. (pessoa física)
US
R. D. (pessoa física)
US
W. G. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
10/31/1989
RPI 993
#2.1
05/02/1989
RPI 967
#21.1
Patente extinta em 16/03/2004
12/15/2009
RPI 2032
#16.1
06/27/1995
RPI 1282
#9.1
01/17/1995
RPI 1259
#6.1
07/19/1994
RPI 1233
#4.1
10/29/1991
RPI 1091
From the same holder
Same category
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