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Official data from INPI

APERFEIÇOAMENTO NO PROCESSO DE LIQUEFAÇÃO DE METANO OU GÁS NATURAL E APARELHO PARA A SUA REALIZAÇÃO

ConcedidaInvention Patent

Application data

Number

PI8405239

Type

Invention Patent

Filing

10/17/1984

Publication

05/27/1986

Progress at the INPI

  1. Filing10/17/84
  2. Publication05/27/86
  3. Examination08/19/86
  4. Allowance12/29/87
  5. Grant11/29/88
  6. Terminated06/27/95

The patent was granted on 11/29/1988 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mangels Industrial S/A

SP, BR

See this company's full portfolio

Inventors

A. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

07/12/1988

RPI 925

Deferimento

#9.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

08/19/1986

RPI 826

Publicação do pedido de patente

#3.1

05/27/1986

RPI 814

Pedido de patente depositado

#2.1

01/02/1985

RPI 741

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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