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Official data from INPI

COPOLÍMERO, PROCESSO PARA A PREPARAÇÃO DE UM COPOLÍMERO E COMBUSTÍVEL HIDRO-CARBONADO LÍQUIDO MODIFICADO

ConcedidaInvention Patent

Application data

Number

PI8001616

Type

Invention Patent

Filing

03/18/1980

Publication

-

Progress at the INPI

  1. Filing03/18/80
  2. Publication
  3. Examination11/03/82
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Terminated09/25/90

The patent was granted on 04/29/1986 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

B. H. (pessoa física)

W. F. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

7909483 · 03/19/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

10/30/1984

RPI 732

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Pedido de certificado de adição de invenção

#5.1

03/29/1983

RPI 649

Solicitação de exame técnico

#4.1

11/03/1982

RPI 628

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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