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Official data from INPI

PROCESSO PARA OBTENÇÃO DE UM SÓLIDO SUBSTANCIALMENTE SECO NA FORMA DE PARTÍCULAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9103168

Type

Invention Patent

Filing

07/24/1991

Publication

05/05/1992

Progress at the INPI

  1. Filing07/24/91
  2. Publication05/05/92
  3. Examination11/17/92
  4. Allowance05/04/99
  5. Grant09/08/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. 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

M. S. (pessoa física)

GB

P. N. (pessoa física)

GB

W. W. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

9017155.4 · 08/03/1990

GB

9114342.0 · 07/03/1991

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/07/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

09/08/1999

RPI 1496

Deferimento

#9.1

05/04/1999

RPI 1478

Exigência - art. 36 da LPI

#6.1

05/19/1998

RPI 1430

14.1

12/20/1994

RPI 1255

Solicitação de exame técnico

#4.1

11/17/1992

RPI 1146

Publicação do pedido de patente

#3.1

05/05/1992

RPI 1118

Pedido de patente depositado

#2.1

04/21/1992

RPI 1116

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