Concessão da patente
#16.1
04/24/1984
RPI 705
The letters patent expired on 06/13/1995: 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: 04/24/1984. We update with every new RPI gazette, published weekly.
Applicants
TOKYO ELECTRIC CO LTD
Inventors
Y. N. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/24/1984
RPI 705
#13.1
02/14/1984
RPI 695
#9.1
11/01/1983
RPI 680
#15.11
07/26/1983
RPI 666
#6.1
06/28/1983
RPI 662
#4.1
01/04/1983
RPI 637
#21.1
06/13/1995
RPI 1280
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.