20.4
10/25/1988
RPI 940
The letters patent expired on 05/31/1994: 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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants
MICHELIN & CIE
Inventors
H. Y. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/25/1988
RPI 940
#16.1
08/27/1985
RPI 775
#13.1
05/07/1985
RPI 759
#9.1
01/15/1985
RPI 743
#6.1
01/17/1984
RPI 691
#6.1
07/20/1982
RPI 613
#4.1
11/24/1981
RPI 579
#21.1
05/31/1994
RPI 1226
From the same holder
Same category
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