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Official data from INPI

DISPOSITIVO DE TENSIONAMENTO PARA O ARMAZENADOR DE ENERGIA DE UMA CHAVE ELÉTRICA

PublicadaInvention Patent
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Application data

Number

PI8704191

Type

Invention Patent

Filing

08/12/1987

Publication

04/12/1988
View on INPI

Progress at the INPI

  1. Filing08/12/87
  2. Publication04/12/88
  3. Examination10/16/90
  4. Allowance04/19/94
  5. Grant10/25/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

Inventors

E. R. (pessoa física)

DE

Technical data

IPC Classification

H01H 3/30H01H 33/40

Priority claims

DE

P 36 27 508.5 · 08/13/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/12/1988

RPI 912

Pedido de patente depositado

#2.1

11/17/1987

RPI 891

Carta-patente expirada

#21.1

Patente extinta em 12/08/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

08/16/1994

RPI 1237

Deferimento

#9.1

04/19/1994

RPI 1220

Exigência - art. 36 da LPI

#6.1

09/21/1993

RPI 1190

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

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