18.8
09/02/1986
RPI 828
The letters patent expired on 07/06/1993: 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: 09/02/1986. We update with every new RPI gazette, published weekly.
Applicants
B. J. (pessoa física)
Inventors
No inventors listed.
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
09/02/1986
RPI 828
#18.2
07/15/1986
RPI 821
10/01/1985
RPI 780
02/12/1985
RPI 747
#22.1
01/08/1985
RPI 742
08/28/1984
RPI 723
05/08/1984
RPI 707
#17.1
12/20/1983
RPI 687
#13.1
07/20/1982
RPI 613
#9.1
03/30/1982
RPI 597
#6.1
10/06/1981
RPI 572
#21.1
07/06/1993
RPI 1179
09/17/1991
RPI 1085
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.