Concessão da patente
#16.1
04/26/1988
RPI 914
The letters patent expired on 05/31/1994: 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: 04/26/1988. We update with every new RPI gazette, published weekly.
Applicants
DU PONT
Inventors
D. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/26/1988
RPI 914
#13.1
02/09/1988
RPI 903
#9.1
10/13/1987
RPI 886
#7.1
03/05/1985
RPI 750
03/02/1982
RPI 593
#21.1
05/31/1994
RPI 1226
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Same category
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