20.7
11/18/1986
RPI 839
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: 11/18/1986. We update with every new RPI gazette, published weekly.
Applicants
G. C. (pessoa física)
Inventors
C. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/18/1986
RPI 839
#16.1
01/31/1984
RPI 693
#13.1
10/04/1983
RPI 676
#9.1
06/14/1983
RPI 660
#4.1
07/13/1982
RPI 612
#21.1
12/07/1993
RPI 1201
Same category
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