Carta-patente expirada
#21.1
Patente extinta em 21/05/2011
06/04/2013
RPI 2213
Application data
Number
PI9102092Type
Filing
Publication
The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
R. S. (pessoa física)
US
IPC Classification
Priority claims
US
527,803 · 05/24/1990
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 21/05/2011
06/04/2013
RPI 2213
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