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Official data from INPI

COMPOSIÇÃO DE REVESTIMENTO AQUOSA. COMPOSIÇÃO DE PIGMENTO, E PROCESSO PARA SUA PREPARAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8602823

Type

Invention Patent

Filing

06/18/1986

Publication

02/10/1987

Progress at the INPI

  1. Filing06/18/86
  2. Publication02/10/87
  3. Examination11/08/88
  4. Allowance09/14/93
  5. Grant03/29/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

Ppg Industries Ohio, Inc.

US

See this company's full portfolio

Inventors

A. F. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8515564 · 06/19/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/08/1988

RPI 942

Publicação do pedido de patente

#3.1

02/10/1987

RPI 851

Pedido de patente depositado

#2.1

12/16/1986

RPI 843

Carta-patente expirada

#21.1

Patente extinta em 18/06/2001

07/22/2008

RPI 1959

Transferência deferida

#25.1

Transferido de: Imperial Chemical Industries PLC.

09/19/2000

RPI 1550

Concessão da patente

#16.1

03/29/1994

RPI 1217

Deferimento

#9.1

09/14/1993

RPI 1189

Exigência - art. 36 da LPI

#6.1

07/14/1992

RPI 1128

Exigência - art. 36 da LPI

#6.1

10/15/1991

RPI 1089

6.2

01/02/1990

RPI 1000

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