Concessão da patente
#16.1
06/02/1987
RPI 867
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: 06/02/1987. We update with every new RPI gazette, published weekly.
Applicants
W. K. (pessoa física)
Inventors
K. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/02/1987
RPI 867
12/30/1986
RPI 845
#13.1
09/02/1986
RPI 828
#9.1
04/29/1986
RPI 810
#6.1
06/11/1985
RPI 764
#5.1
10/09/1984
RPI 729
#4.1
05/15/1984
RPI 708
#3.2
03/07/1984
RPI 698
#2.1
07/12/1983
RPI 664
#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.