20.4
12/29/1987
RPI 897
The letters patent expired on 09/27/1994: 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: 12/29/1987. We update with every new RPI gazette, published weekly.
Applicants
SOM IND E COMERCIO S A [BR]
Inventors
C. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
12/29/1987
RPI 897
12/29/1987
RPI 897
#16.1
10/27/1987
RPI 888
#13.1
07/14/1987
RPI 873
#9.1
03/17/1987
RPI 856
#6.1
09/30/1986
RPI 832
11/12/1985
RPI 786
#4.1
10/15/1985
RPI 782
#3.1
07/16/1985
RPI 769
#2.1
02/21/1984
RPI 696
#21.1
09/27/1994
RPI 1243
Same category
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