Concessão da patente
#16.1
07/30/1985
RPI 771
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: 07/30/1985. We update with every new RPI gazette, published weekly.
Applicants
ENGELHARD MIN & CHEM
Inventors
B. D. (pessoa física)
K. C. (pessoa física)
K. R. (pessoa física)
M. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/30/1985
RPI 771
#13.1
05/07/1985
RPI 759
#9.1
01/15/1985
RPI 743
#6.1
01/10/1984
RPI 690
#6.1
01/11/1983
RPI 638
10/26/1982
RPI 627
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
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