Concessão da patente
#16.1
12/27/1988
RPI 949
Application data
Number
PI8207274Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 12/27/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
P. B. (pessoa física)
IPC Classification
Priority claims
US
331095 · 12/16/1981
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