20.4
11/28/1989
RPI 997
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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
SOLIDOR ELEMENTOS PRE FABRICAD [BR]
Inventors
B. K. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
11/28/1989
RPI 997
#16.1
08/30/1988
RPI 932
#13.1
05/10/1988
RPI 916
#9.1
12/29/1987
RPI 897
#4.1
04/07/1987
RPI 859
#3.1
02/26/1985
RPI 749
#2.1
09/27/1983
RPI 675
#21.1
12/07/1993
RPI 1201
Same category
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