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Official data from INPI

SISTEMA DE CONTROLE DE CONVERSOR DE FORÇA, VEÍCULO ELÉTRICO, PROCESSO PARA CONTROLE DO MESMO E APARELHO PARA DIAGNOSTICAR UMA ANORMALIDADE DE UM APARELHO DE CONTROLE

ArquivadaInvention Patent

Application data

Number

PI9004243

Type

Invention Patent

Filing

08/28/1990

Publication

09/03/1991

Progress at the INPI

  1. Filing08/28/90
  2. Publication09/03/91
  3. Abandoned12/03/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/07/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hitachi, Ltd

JP

See this company's full portfolio

Inventors

H. S. (pessoa física)

K. K. (pessoa física)

S. O. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

01-221493 · 08/30/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.31

10/07/1997

RPI 1401

Exigência - art. 36 da LPI

#6.1

11/12/1996

RPI 1354

Solicitação de exame técnico

#4.1

12/03/1991

RPI 1096

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

03/05/1991

RPI 1057

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