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Official data from INPI

PROCESSO PARA FAZER UM PRODUTO DE PLÁSTICO MOLDADO E COMPOSIÇÃO POLIMERIZÁVEL

ConcedidaInvention Patent

Application data

Number

PI8202401

Type

Invention Patent

Filing

04/27/1982

Publication

04/12/1983

Progress at the INPI

  1. Filing04/27/82
  2. Publication04/12/83
  3. Examination06/25/85
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/26/1988. 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. O. (pessoa física)

GB

W. S. (pessoa física)

GB

Technical data

Priority claims

GB

8113122 · 04/28/1981

GB

8121379 · 07/10/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

06/10/1986

RPI 816

Solicitação de exame técnico

#4.1

06/25/1985

RPI 766

Publicação do pedido de patente

#3.1

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

Carta-patente expirada

#21.1

Patente extinta em 27/04/97

07/01/2008

RPI 1956

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