5.3
09/12/1989
RPI 986
Application data
Number
PI8602941Type
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: 09/12/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. K. (pessoa física)
NL
G. B. (pessoa física)
NL
O. V. (pessoa física)
NL
IPC Classification
Priority claims
NL
8501863 · 06/28/1985
Publications in the Brazilian Industrial Property Gazette (RPI).
09/12/1989
RPI 986
07/18/1989
RPI 978
#4.1
02/08/1989
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#3.1
02/17/1987
RPI 852
#2.1
12/23/1986
RPI 844
#21.1
Patente extinta em 26/06/2001
07/22/2008
RPI 1959
#16.1
10/29/1996
RPI 1352
#13.1
06/18/1996
RPI 1333
#9.1
11/28/1995
RPI 1304
#6.1
02/21/1995
RPI 1264
#6.1
07/20/1993
RPI 1181
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