Concessão da patente
#16.1
05/31/1988
RPI 919
The letters patent expired on 10/04/1994: 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: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants
JOAO CARLOS AYRES NETTO [BR]
Inventors
N. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/31/1988
RPI 919
#13.1
02/09/1988
RPI 903
#9.1
10/06/1987
RPI 885
#6.1
12/23/1986
RPI 844
#4.1
03/04/1986
RPI 802
#3.1
09/24/1985
RPI 779
#2.1
05/08/1984
RPI 707
#21.1
10/04/1994
RPI 1244
Same category
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