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Official data from INPI

DISPOSITIVO DE EFEITO DE CAMPO COM PORTA DE ÓXIDO SEMICONDUTOR TRASNPARENTE.

IndeferidaInvention Patent

Application data

Number

PI8203603

Type

Invention Patent

Filing

06/17/1982

Publication

01/24/1984

Progress at the INPI

Under appeal
  1. Filing06/17/82
  2. Publication01/24/84
  3. Examination11/18/86
  4. Refused08/02/88
  5. Grant
  6. In force

The application was refused by the INPI on 08/02/1988. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 08/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telecomunicações Brasileiras S/A - Telebrás

SP, BR

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Inventors

A. M. (pessoa física)

BR

C. M. (pessoa física)

BR

E. B. (pessoa física)

BR

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

08/02/1988

RPI 928

Conhecimento de parecer técnico

#7.1

10/27/1987

RPI 888

Solicitação de exame técnico

#4.1

11/18/1986

RPI 839

8.1

04/29/1986

RPI 810

Publicação do pedido de patente

#3.1

01/24/1984

RPI 692

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