20.4
02/09/1988
RPI 903
The letters patent expired on 07/13/1993: 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: 02/09/1988. We update with every new RPI gazette, published weekly.
Applicants
YOKOGAWA ELECTRIC WORKS LTD
Inventors
K. K. (pessoa física)
S. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/09/1988
RPI 903
#16.1
04/24/1984
RPI 705
01/10/1984
RPI 690
#13.1
01/03/1984
RPI 689
#9.1
09/20/1983
RPI 674
#6.1
03/29/1983
RPI 649
06/15/1982
RPI 608
#6.1
06/08/1982
RPI 607
10/20/1981
RPI 574
#21.1
07/13/1993
RPI 1180
From the same holder
Same category
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