Concessão da patente
#16.1
07/26/1988
RPI 927
Application data
Number
PI8307698Type
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: 07/26/1988. We update with every new RPI gazette, published weekly.
Applicants
Castrol Limited
GB
Inventors
A. H. (pessoa física)
D. J. (pessoa física)
M. A. (pessoa física)
M. B. (pessoa física)
GB
P. B. (pessoa física)
T. C. (pessoa física)
IPC Classification
Priority claims
GB
8230159 · 10/22/1982
GB
8235325 · 12/10/1982
GB
PCT/83/00265 · 10/19/1983
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