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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE ALDEÍDOS HIDRÓXI-ARÍLICOS.

Em AnáliseInvention Patent

Application data

Number

PI8506267

Type

Invention Patent

Filing

12/13/1985

Publication

06/30/1987

Progress at the INPI

  1. Filing12/13/85
  2. Publication06/30/87
  3. Examination10/06/87
  4. Allowance04/20/93
  5. Grant09/28/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 10/06/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

Zeneca Limited

GB

See this company's full portfolio

Inventors

A. I. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/06/1987

RPI 885

Publicação do pedido de patente

#3.1

06/30/1987

RPI 871

Pedido de patente depositado

#2.1

02/25/1986

RPI 801

Carta-patente expirada

#21.1

Patente extinta em 13/12/2000

07/15/2008

RPI 1958

Pedido de licença compulsória

#20.1

01/10/1995

RPI 1258

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

08/17/1993

RPI 1185

Deferimento

#9.1

04/20/1993

RPI 1168

Exigência - art. 36 da LPI

#6.1

10/06/1992

RPI 1140

Exigência - art. 36 da LPI

#6.1

02/25/1992

RPI 1108

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