Deferimento
#9.1
08/29/1989
RPI 984
Back to search
Official data from INPI
VÁLVULA APERFEIÇOADA APLICADA EM ACUMULADOR ELÉTRICO
DeferidaInvention Patent
Application data
Number
PI8402418Type
Invention Patent
Filing
05/21/1984
Publication
12/31/1985
Progress at the INPI
- Filing05/21/84
- Publication12/31/85
- Examination03/18/86
- Allowance08/29/89
- Grant04/24/90
- Expired07/08/08
The letters patent expired on 07/08/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Acumuladores Narvit Ltda
SP, BR
Inventors
R. N. (pessoa física)
BR
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Exigência - art. 36 da LPI
#6.1
03/28/1989
RPI 962
Solicitação de exame técnico
#4.1
03/18/1986
RPI 804
Publicação do pedido de patente
#3.1
12/31/1985
RPI 793
Pedido de patente depositado
#2.1
07/31/1984
RPI 719
Carta-patente expirada
#21.1
Patente extinta em 21/05/99
07/08/2008
RPI 1957
Concessão da patente
#16.1
04/24/1990
RPI 1015
Notificação para pagamento de retribuição
#13.1
01/09/1990
RPI 1001
Related
From the same holder
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.