Concessão da patente
#16.1
09/27/1983
RPI 675
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: 09/27/1983. We update with every new RPI gazette, published weekly.
Applicants
STAMICARBON
Inventors
D. H. (pessoa física)
V. T. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/27/1983
RPI 675
#13.1
06/21/1983
RPI 661
#9.1
03/01/1983
RPI 645
05/25/1982
RPI 605
#4.1
11/03/1981
RPI 576
#21.1
06/21/1994
RPI 1229
From the same holder
Same category
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