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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UM DISPERSÃO POLÍMERA AQUOSA ESTERICAMENTE ESTABILIZADA E DISPERSÃO ASSIM OBTIDA

ConcedidaInvention Patent

Application data

Number

PI8302643

Type

Invention Patent

Filing

05/19/1983

Publication

01/17/1984

Progress at the INPI

  1. Filing05/19/83
  2. Publication01/17/84
  3. Examination02/18/86
  4. Allowance11/29/88
  5. Grant11/28/89
  6. Terminated04/25/95

The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

M. T. (pessoa física)

GB

S. D. (pessoa física)

GB

Technical data

Priority claims

GB

8214675 · 05/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

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

11/29/1988

RPI 945

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

02/18/1986

RPI 800

Publicação do pedido de patente

#3.1

01/17/1984

RPI 691

Pedido de patente depositado

#2.1

07/05/1983

RPI 663

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

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