20.4
10/25/1988
RPI 940
The letters patent expired on 06/21/1994: 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
P. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/25/1988
RPI 940
#16.1
08/28/1984
RPI 723
#13.1
05/02/1984
RPI 706
#9.1
01/24/1984
RPI 692
#6.1
06/28/1983
RPI 662
#4.1
11/24/1981
RPI 579
#21.1
06/21/1994
RPI 1229
From the same holder
Same category
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