Publicação do pedido de patente
#3.1
11/17/1987
RPI 891
Application data
Number
PI8604688Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 11/17/1987. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
P. W. (pessoa física)
NL
IPC Classification
Priority claims
US
812207 · 12/23/1985
US
812421 · 12/23/1985
US
812423 · 12/23/1985
US
812424 · 12/23/1985
US
812431 · 12/23/1985
US
846315 · 03/28/1986
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11/17/1987
RPI 891
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