Publicação do pedido de patente
#3.1
11/16/1988
RPI 943
Application data
Number
PI8801792Type
Filing
Publication
The letters patent expired on 12/11/2012: 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: 11/16/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. F. (pessoa física)
GB
D. A. (pessoa física)
GB
IPC Classification
Priority claims
GB
8709228 · 04/16/1987
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
11/16/1988
RPI 943
#2.1
08/30/1988
RPI 932
#21.1
Patente extinta em 11/07/2010
12/11/2012
RPI 2188
#16.1
07/11/2000
RPI 1540
#9.1
02/29/2000
RPI 1521
#7.1
09/21/1999
RPI 1498
#6.1
12/13/1994
RPI 1254
#4.1
12/04/1990
RPI 1044
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