20.4
11/22/1988
RPI 944
The letters patent expired on 07/20/1993: 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: 11/22/1988. We update with every new RPI gazette, published weekly.
Applicants
MICHELIN & CIE
Inventors
D. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/22/1988
RPI 944
#16.1
05/31/1983
RPI 658
#13.1
01/11/1983
RPI 638
#9.1
09/08/1982
RPI 620
#6.1
03/09/1982
RPI 594
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
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