18.8
02/14/1989
RPI 956
The letters patent expired on 05/24/1994: 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: 02/14/1989. We update with every new RPI gazette, published weekly.
Applicants
M. V. (pessoa física)
Inventors
D. W. (pessoa física)
W. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/14/1989
RPI 956
#18.2
01/03/1989
RPI 950
#20.1
12/26/1984
RPI 740
12/18/1984
RPI 739
#16.1
11/29/1983
RPI 684
#13.1
09/27/1983
RPI 675
#9.1
05/31/1983
RPI 658
#6.1
11/16/1982
RPI 630
#4.1
04/13/1982
RPI 599
#21.1
05/24/1994
RPI 1225
From the same holder
Same category
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