20.4
08/22/1989
RPI 983
The letters patent expired on 11/15/1994: 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: 08/22/1989. We update with every new RPI gazette, published weekly.
Applicants
SOBRAL IND COM SA [BR]
Inventors
S. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/22/1989
RPI 983
#16.1
07/29/1986
RPI 823
#13.1
04/22/1986
RPI 809
#9.1
12/17/1985
RPI 791
#6.1
08/06/1985
RPI 772
#4.1
11/13/1984
RPI 734
#3.1
02/14/1984
RPI 695
#2.1
08/24/1982
RPI 618
#21.1
11/15/1994
RPI 1250
From the same holder
Same category
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