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Official data from INPI

COMPOSIÇÃO TENSO-ATIVA E EMULSÃO DE METANOL OU ETANOL EM UM COMBUSTÍVEL HIDROCARBONETO LÍQUIDO

ConcedidaInvention Patent

Application data

Number

PI8300393

Type

Invention Patent

Filing

01/27/1983

Publication

10/25/1983

Progress at the INPI

  1. Filing01/27/83
  2. Publication10/25/83
  3. Examination10/08/85
  4. Allowance10/04/88
  5. Grant05/30/89
  6. Terminated08/29/95

The patent was granted on 05/30/1989 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

S. A. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8202856 · 02/01/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

Exigência - art. 36 da LPI

#6.1

04/05/1988

RPI 911

Solicitação de exame técnico

#4.1

10/08/1985

RPI 781

Publicação do pedido de patente

#3.1

10/25/1983

RPI 679

Pedido de patente depositado

#2.1

03/15/1983

RPI 647

Anuidade - prazo legal encerrado

#18.2

08/29/1995

RPI 1291

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