20.4
01/19/1988
RPI 900
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: 01/19/1988. We update with every new RPI gazette, published weekly.
Applicants
YOKOGAWA ELECTRIC WORKS LTD
Inventors
A. T. (pessoa física)
A. T. (pessoa física)
I. I. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
01/19/1988
RPI 900
#16.1
08/27/1985
RPI 775
11/01/1983
RPI 680
#13.1
03/22/1983
RPI 648
02/22/1983
RPI 644
#6.1
11/03/1981
RPI 576
#21.1
05/24/1994
RPI 1225
From the same holder
Same category
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