Carta-patente expirada
#21.1
Patente extinta em 10/11/2009
12/26/2012
RPI 2190
Application data
Number
PI8905751Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. S. (pessoa física)
NL
A. K. (pessoa física)
NL
IPC Classification
Priority claims
GB
8826324 · 11/10/1988
GB
8900953.4 · 01/17/1989
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