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Official data from INPI

DISPOSITIVO DE PROTEÇÃO CONTRA SURTOS NA REDE DE ALIMENTAÇÃO PARA MEDIDORES POLIFÁSICOS.

ConcedidaInvention Patent

Application data

Number

PI8400157

Type

Invention Patent

Filing

01/11/1984

Publication

08/20/1985

Progress at the INPI

  1. Filing01/11/84
  2. Publication08/20/85
  3. Examination03/11/86
  4. Allowance12/29/87
  5. Grant09/27/88
  6. 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.

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Latest action published by the INPI: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. A. (pessoa física)

RJ, BR

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Inventors

F. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

03/11/1986

RPI 803

Publicação do pedido de patente

#3.1

08/20/1985

RPI 774

Pedido de patente depositado

#2.1

03/20/1984

RPI 700

Carta-patente expirada

#21.1

Patente extinta em 11/01/99

07/08/2008

RPI 1957

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