Solicitação de exame técnico
#4.1
11/21/1989
RPI 996
The letters patent expired on 09/18/2001: 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: 11/21/1989. We update with every new RPI gazette, published weekly.
Applicants
N. D. (pessoa física)
SP, BR
Inventors
N. D. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
11/21/1989
RPI 996
#3.1
02/28/1989
RPI 958
#2.1
12/22/1987
RPI 896
#21.1
Patente extinta em 07/08/97 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
#16.1
03/31/1992
RPI 1113
#13.1
10/29/1991
RPI 1091
#15.11
07/02/1991
RPI 1074
#9.1
07/02/1991
RPI 1074
#6.1
01/29/1991
RPI 1052
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.