20.4
02/09/1988
RPI 903
The letters patent expired on 04/04/1995: 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
S. G. (pessoa física)
S. K. (pessoa física)
T. S. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/09/1988
RPI 903
11/01/1983
RPI 680
#16.1
03/29/1983
RPI 649
#13.1
12/14/1982
RPI 634
#9.1
07/27/1982
RPI 614
#21.1
04/04/1995
RPI 1270
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.