Publicação do pedido de patente
#3.1
08/29/1989
RPI 984
Application data
Number
PI8806849Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
M. M. (pessoa física)
US
IPC Classification
Priority claims
US
140.076 · 12/31/1987
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
08/29/1989
RPI 984
#2.1
04/25/1989
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#21.1
Patente extinta em 23/12/2003
09/02/2008
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10/29/1996
RPI 1352
#9.1
03/12/1996
RPI 1319
#6.1
05/23/1995
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08/27/1991
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