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Official data from INPI

COMPOSIÇÃO DE REVESTIMENTO AQUOSA

Em AnáliseInvention Patent

Application data

Number

PI8704926

Type

Invention Patent

Filing

09/24/1987

Publication

05/17/1988

Progress at the INPI

  1. Filing09/24/87
  2. Publication05/17/88
  3. Examination08/30/88
  4. Allowance08/01/95
  5. Grant03/26/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Akzo N.V.

NL

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Inventors

A. N. (pessoa física)

NL

P. P. (pessoa física)

NL

Technical data

Priority claims

NL

8602412 · 09/24/1986

NL

8701708 · 07/20/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/30/1988

RPI 932

Publicação do pedido de patente

#3.1

05/17/1988

RPI 917

Pedido de patente depositado

#2.1

12/22/1987

RPI 896

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09D 3/48; C09D 3/64; C09D 3/70.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 24/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/26/1996

RPI 1321

Deferimento

#9.1

08/01/1995

RPI 1287

Exigência - art. 36 da LPI

#6.1

02/22/1994

RPI 1212

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