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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE UM ÁCIDO CARBOXÍLICO AROMÁTICO

ConcedidaInvention Patent

Application data

Number

PI8004027

Type

Invention Patent

Filing

06/27/1980

Publication

-

Progress at the INPI

  1. Filing06/27/80
  2. Publication
  3. Examination04/26/83
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Expired09/12/95

The letters patent expired on 09/12/1995: the term of protection has ended. The technology is in the public domain and may be freely used 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 Limited

GB

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

C. G. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

7922989 · 07/02/1979

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

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

04/26/1983

RPI 653

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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