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Official data from INPI

RELÉ DE PROTEÇÃO, APARELHO PARA MEDIR A DISTÂNCIA ATÉ UMA FALHA EM UM SISTEMA DE DISTRIBUIÇÃO DE ENERGIA ELÉTRICA E RELÉ ACIONADO À DISTÂNCIA

Prazo de SigiloInvention Patent

Application data

Number

PI8904201

Type

Invention Patent

Filing

08/16/1989

Publication

02/13/1991

Progress at the INPI

  1. Filing08/16/89
  2. Publication02/13/91
  3. Examination09/08/93
  4. Allowance11/07/95
  5. Grant07/30/96
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

See this company's full portfolio

Inventors

L. C. (pessoa física)

US

Technical data

Priority claims

US

270.835 · 11/14/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/21/1989

RPI 996

Carta-patente expirada

#21.1

Patente extinta em 16/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

07/30/1996

RPI 1339

Deferimento

#9.1

11/07/1995

RPI 1301

Exigência - art. 36 da LPI

#6.1

04/11/1995

RPI 1271

Solicitação de exame técnico

#4.1

09/08/1993

RPI 1188

4.2.1

09/08/1993

RPI 1188

Solicitação de exame não realizada

#4.2

06/15/1993

RPI 1176

Publicação do pedido de patente

#3.1

02/13/1991

RPI 1054

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