Concessão da patente
#16.1
08/30/1983
RPI 671
The letters patent expired on 05/24/1994: 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: 08/30/1983. We update with every new RPI gazette, published weekly.
Applicants
PHILLIPS PETROLEUM CO
Inventors
M. M. (pessoa física)
W. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/30/1983
RPI 671
#13.1
05/31/1983
RPI 658
#9.1
01/25/1983
RPI 640
#6.1
08/03/1982
RPI 615
#21.1
05/24/1994
RPI 1225
From the same holder
Same category
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