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Official data from INPI

APERFEIÇOAMENTOS NO PROCESSO E EQUIPAMENTO DE OBTENÇÃO DE METANO PURO A PARTIRDE BIOGÁS OU GÁS NATURAL COM ALTA CONCENTRAÇÃO DE DIÓXIDO DE CARBONO

ConcedidaInvention Patent

Application data

Number

PI8302548

Type

Invention Patent

Filing

05/16/1983

Publication

12/18/1984

Progress at the INPI

  1. Filing05/16/83
  2. Publication12/18/84
  3. Examination04/02/85
  4. Allowance07/08/86
  5. Grant04/28/87
  6. Terminated08/29/95

The patent was granted on 04/28/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mangels Industrial S/A

SP, BR

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Inventors

B. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

11/26/1985

RPI 788

Solicitação de exame técnico

#4.1

04/02/1985

RPI 754

Publicação do pedido de patente

#3.1

12/18/1984

RPI 739

Pedido de patente depositado

#2.1

06/28/1983

RPI 662

Anuidade - prazo legal encerrado

#18.2

08/29/1995

RPI 1291

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