18.8
09/30/1986
RPI 832
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: 09/30/1986. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/30/1986
RPI 832
#18.2
08/05/1986
RPI 824
#16.1
06/26/1984
RPI 714
#13.1
06/12/1984
RPI 712
04/10/1984
RPI 703
11/22/1983
RPI 683
11/01/1983
RPI 680
#12.2
03/29/1983
RPI 649
#9.2
03/09/1982
RPI 594
#21.1
12/07/1993
RPI 1201
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Same category
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