Solicitação de exame técnico
#4.1
01/17/1989
RPI 952
The letters patent expired on 08/15/1995: 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: 01/17/1989. We update with every new RPI gazette, published weekly.
Applicants
D. L. (pessoa física)
PR, BR
D. L. (pessoa física)
D. L. (pessoa física)
PR, BR
Inventors
D. L. (pessoa física)
BR
D. L. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
01/17/1989
RPI 952
#3.1
01/13/1987
RPI 847
#2.1
08/20/1985
RPI 774
#21.1
08/15/1995
RPI 1289
#16.1
09/29/1992
RPI 1139
#13.1
07/30/1991
RPI 1078
#9.1
04/16/1991
RPI 1063
#15.11
03/19/1991
RPI 1059
#6.1
10/09/1990
RPI 1036
#6.1
03/13/1990
RPI 1009
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.