20.4
10/25/1988
RPI 940
The letters patent expired on 11/30/1993: 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
L. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/25/1988
RPI 940
#16.1
01/11/1983
RPI 638
#13.1
08/31/1982
RPI 619
05/11/1982
RPI 603
#9.1
04/27/1982
RPI 601
#21.1
11/30/1993
RPI 1200
From the same holder
Same category
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