Solicitação de exame técnico
#4.1
05/09/1989
RPI 968
The letters patent expired on 07/01/2008: 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: 05/09/1989. We update with every new RPI gazette, published weekly.
Applicants
D. P. (pessoa física)
PR, BR
Inventors
D. P. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
05/09/1989
RPI 968
#3.1
07/05/1988
RPI 924
#2.1
05/05/1987
RPI 863
#21.1
Patente extinta em 18/12/1996
07/01/2008
RPI 1956
06/07/1994
RPI 1227
07/27/1993
RPI 1182
04/20/1993
RPI 1168
#17.1
09/08/1992
RPI 1136
#16.1
12/31/1991
RPI 1100
#13.1
08/06/1991
RPI 1079
04/23/1991
RPI 1064
#12.1
09/04/1990
RPI 1031
#9.1
05/15/1990
RPI 1018
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.