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Official data from INPI

SISTEMA ELETRÔNICO E DISPOSITIVO SEMICONDUTOR PARA PROTEÇÃO CONTRA SOBRETENSÕES

Em AnáliseInvention Patent

Application data

Number

PI8800174

Type

Invention Patent

Filing

01/20/1988

Publication

08/30/1988

Progress at the INPI

  1. Filing01/20/88
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 01/20/1988. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 04/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Northern Telecom Limited

CA

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Inventors

J. A. (pessoa física)

CA

J. B. (pessoa física)

CA

W. T. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

CA

528,200 · 01/26/1987

US

101,094 · 09/25/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

04/11/1989

RPI 964

Solicitação de exame técnico

#4.1

12/06/1988

RPI 946

Publicação do pedido de patente

#3.1

08/30/1988

RPI 932

Pedido de patente depositado

#2.1

05/03/1988

RPI 915

Retificação

#15.3

07/28/1992

RPI 1130

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