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Official data from INPI

APARELHO DE CONEXÃO E CONDICIONAMENTO DE SINAL PARA UM MEDIDOR DE ENERGIA ELETRÔNICO E MÉTODO DE FABRICAR OU RETROAJUSTAR UM MEDIDOR DE ENERGIA ELETRÔNICO.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004758

Type

Invention Patent

Filing

09/24/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/24/90
  2. Publication09/10/91
  3. Examination12/07/93
  4. Allowance07/14/98
  5. Grant12/29/98
  6. Expired05/21/13

The letters patent expired on 05/21/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

See this company's full portfolio

Inventors

J. S. (pessoa física)

US

P. C. (pessoa física)

US

W. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

412.351 · 09/25/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/09/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

07/14/1998

RPI 1438

Solicitação de exame técnico

#4.1

12/07/1993

RPI 1201

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

03/26/1991

RPI 1060

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