Concessão da patente
#16.1
07/31/1984
RPI 719
The letters patent expired on 05/31/1994: 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: 07/31/1984. We update with every new RPI gazette, published weekly.
Applicants
DARUMA TELECOMUNICACOES SA
Inventors
M. K. (pessoa física)
O. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/31/1984
RPI 719
#13.1
03/20/1984
RPI 700
#9.1
11/29/1983
RPI 684
#6.1
06/14/1983
RPI 660
#4.1
11/16/1982
RPI 630
#21.1
05/31/1994
RPI 1226
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.