18.8
05/23/1989
RPI 970
The letters patent expired on 12/07/1993: 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: 05/23/1989. We update with every new RPI gazette, published weekly.
Applicants
A. O. (pessoa física)
Inventors
O. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
05/23/1989
RPI 970
#18.2
11/29/1988
RPI 945
#16.1
11/25/1986
RPI 840
#13.1
09/02/1986
RPI 828
#9.1
05/13/1986
RPI 812
#6.1
05/07/1985
RPI 759
#4.1
07/19/1983
RPI 665
#3.2
03/22/1983
RPI 648
#2.1
01/18/1983
RPI 639
#21.1
12/07/1993
RPI 1201
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Same category
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