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Official data from INPI

PROCESSO PARA A PIRÓLISE DE METANO PARA O CRESCIMENTO E A FABRICAÇÃO DE FIBRAS DE GRAFITE

Em ExigênciaInvention Patent

Application data

Number

PI8503950

Type

Invention Patent

Filing

08/19/1985

Publication

06/03/1986

Progress at the INPI

  1. Filing08/19/85
  2. Publication06/03/86
  3. Examination07/19/88
  4. Allowance06/04/91
  5. Grant11/26/91
  6. Terminated05/28/96

The patent was granted on 11/26/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

US

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Inventors

G. T. (pessoa física)

US

M. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

642.574 · 08/20/1984

US

685.046 · 12/21/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

07/19/1988

RPI 926

Publicação do pedido de patente

#3.1

06/03/1986

RPI 815

Pedido de patente depositado

#2.1

10/29/1985

RPI 784

Anuidade - prazo legal encerrado

#18.2

05/28/1996

RPI 1330

Concessão da patente

#16.1

11/26/1991

RPI 1095

Republicação - classificação IPC

#15.11

11/05/1991

RPI 1092

Deferimento

#9.1

06/04/1991

RPI 1070

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