18.8
02/28/1989
RPI 958
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: 02/28/1989. We update with every new RPI gazette, published weekly.
Applicants
METALURGICAS RUGERI MEC RUL LT [BR]
Inventors
M. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/28/1989
RPI 958
#18.2
11/29/1988
RPI 945
#16.1
04/26/1988
RPI 914
01/05/1988
RPI 898
#13.1
12/29/1987
RPI 897
#9.1
09/01/1987
RPI 880
#15.6
03/17/1987
RPI 856
12/09/1986
RPI 842
#4.1
10/29/1985
RPI 784
#3.1
07/17/1984
RPI 717
#2.1
02/16/1983
RPI 643
#21.1
11/15/1994
RPI 1250
Same category
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