15.9
08/30/1988
RPI 932
Application data
Number
PI8600145Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 08/30/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
D. B. (pessoa física)
NL
S. S. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
08/30/1988
RPI 932
#3.1
09/23/1986
RPI 831
#2.1
04/15/1986
RPI 808
#21.1
Patente extinta em 16/01/2001
07/22/2008
RPI 1959
#16.1
10/31/1995
RPI 1300
#9.1
04/25/1995
RPI 1273
#6.1
06/28/1994
RPI 1230
#4.1
12/22/1992
RPI 1151
04/09/1991
RPI 1062
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