20.4
10/25/1988
RPI 940
The letters patent expired on 04/18/1995: 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.
FR
Inventors
C. J. (pessoa física)
C. A. (pessoa física)
IPC Classification
Priority claims
FR
78-21 346 · 07/13/1978
Publications in the Brazilian Industrial Property Gazette (RPI).
10/25/1988
RPI 940
#16.1
01/29/1985
RPI 745
#13.1
10/23/1984
RPI 731
#9.1
07/10/1984
RPI 716
#6.1
11/22/1983
RPI 683
#4.1
04/27/1982
RPI 601
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B60C 21/08; B60C 17/00; C08L 7/00; C08L 21/00; C08L 23/18; C08L 47/00; C08L 101/00; C09K 3/10.
03/27/2018
RPI 2464
#21.1
04/18/1995
RPI 1272
From the same holder
Same category
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