Solicitação de exame técnico
#4.1
10/31/1989
RPI 993
The letters patent expired on 09/25/2001: 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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Márcio da Silva Pinto Pinheiro, brasileiro
MG, BR
Inventors
M. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/31/1989
RPI 993
#3.2
08/23/1988
RPI 931
#2.1
08/09/1988
RPI 929
#21.1
Patente extinta em 12/05/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
10/29/1991
RPI 1091
#15.6
07/30/1991
RPI 1078
#15.11
05/14/1991
RPI 1067
#15.3
04/09/1991
RPI 1062
#9.1
12/18/1990
RPI 1046
11/06/1990
RPI 1040
#7.1
05/01/1990
RPI 1016
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.