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Official data from INPI

PROCESSO PARA PRODUÇÃO CONTINUA DE UMA COMPOSIÇÃO EXPLOSIVA DE EMULSÃO DE ÓLEO/ÁGUA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002855

Type

Invention Patent

Filing

06/18/1990

Publication

08/20/1991

Progress at the INPI

  1. Filing06/18/90
  2. Publication08/20/91
  3. Examination11/30/93
  4. Allowance01/09/96
  5. Grant12/31/96
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. 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

F. V. (pessoa física)

CA

J. S. (pessoa física)

CA

R. O. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

GB

8913871.3 · 06/16/1989

GB

8914507.2 · 06/23/1989

GB

9011503.1 · 05/23/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/06/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

12/31/1996

RPI 1361

Notificação para pagamento de retribuição

#13.1

07/02/1996

RPI 1335

Deferimento

#9.1

01/09/1996

RPI 1310

Solicitação de exame técnico

#4.1

11/30/1993

RPI 1200

Publicação do pedido de patente

#3.1

08/20/1991

RPI 1081

Pedido de patente depositado

#2.1

10/30/1990

RPI 1039

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