Concessão da patente
#16.1
07/25/1989
RPI 979
Application data
Number
PI8301676Type
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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
K. J. (pessoa física)
S. V. (pessoa física)
IPC Classification
Priority claims
GB
8209455 · 03/31/1982
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