Publicação do pedido de patente
#3.1
05/31/1988
RPI 919
Application data
Number
PI8705810Type
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: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. L. (pessoa física)
US
IPC Classification
Priority claims
US
926,025 · 10/31/1986
US
926,026 · 10/31/1986
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
05/31/1988
RPI 919
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ALTERADA DE B01J 23/66, C07C 301/10
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