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Official data from INPI

PROCESSO E APARELHO PARA RESFRIAMENTO E PURIFICAÇÃO DE UM GÁS QUENTE E GÁS RESFRIADO

ConcedidaInvention Patent

Application data

Number

PI8202316

Type

Invention Patent

Filing

04/22/1982

Publication

11/16/1983

Progress at the INPI

  1. Filing04/22/82
  2. Publication11/16/83
  3. Examination12/31/85
  4. Allowance12/13/88
  5. Grant08/29/89
  6. Terminated10/16/90

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

A. O. (pessoa física)

NL

B. M. (pessoa física)

NL

J. S. (pessoa física)

Technical data

IPC Classification

Priority claims

NL

8105169 · 11/16/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/13/1988

RPI 947

Exigência - art. 36 da LPI

#6.1

08/09/1988

RPI 929

6.2

03/24/1987

RPI 857

Solicitação de exame técnico

#4.1

12/31/1985

RPI 793

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

06/08/1982

RPI 607

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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