20.3
08/23/1988
RPI 931
The letters patent expired on 12/07/1993: 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: 08/23/1988. We update with every new RPI gazette, published weekly.
Applicants
S. L. (pessoa física)
Inventors
S. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/23/1988
RPI 931
#20.1
11/04/1986
RPI 837
#16.1
05/29/1984
RPI 710
#13.1
01/31/1984
RPI 693
12/06/1983
RPI 685
#12.1
08/09/1983
RPI 668
#9.1
04/26/1983
RPI 653
#6.1
11/09/1982
RPI 629
#4.1
12/22/1981
RPI 583
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.