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Official data from INPI

PROCESSO DE PRODUÇÃO DE ÉTERES

ConcedidaInvention Patent

Application data

Number

PI8205421

Type

Invention Patent

Filing

09/15/1982

Publication

02/01/1983

Progress at the INPI

  1. Filing09/15/82
  2. Publication02/01/83
  3. Examination11/16/83
  4. Allowance07/08/86
  5. Grant04/28/87
  6. Terminated08/20/96

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.

Talk to a specialist

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

Applicants and inventors

Applicants

Petroflex Industria e Comercio S/A

RJ, BR

See this company's full portfolio

Inventors

A. C. (pessoa física)

BR

M. A. (pessoa física)

BR

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

10/15/1985

RPI 782

Solicitação de exame técnico

#4.1

11/16/1983

RPI 682

Publicação antecipada

#3.2

02/01/1983

RPI 641

Pedido de patente depositado

#2.1

11/03/1982

RPI 628

Anuidade - prazo legal encerrado

#18.2

08/20/1996

RPI 1342

22.2

07/16/1996

RPI 1337

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