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Official data from INPI

PROCESSO PARA PRODUZIR UM PIGMENTO PARA CARGA DE PAPEL À BASE DE CAULIM DE ALTA OPACIFICAÇÃO, E, PIGMENTO E FOLHA DE PAPEL

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906697

Type

Invention Patent

Filing

12/22/1989

Publication

09/11/1990

Progress at the INPI

  1. Filing12/22/89
  2. Publication09/11/90
  3. Examination03/16/93
  4. Allowance03/09/99
  5. Grant07/27/99
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E.C.C. America, Inc

US

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Inventors

R. T. (pessoa física)

US

W. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

288,681 · 12/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 22/12/2009

01/02/2013

RPI 2191

Concessão da patente

#16.1

07/27/1999

RPI 1490

Deferimento

#9.1

03/09/1999

RPI 1470

Exigência - art. 36 da LPI

#6.1

09/29/1998

RPI 1449

Exigência - art. 36 da LPI

#6.1

02/25/1998

RPI 1418

Solicitação de exame técnico

#4.1

03/16/1993

RPI 1163

Publicação do pedido de patente

#3.1

09/11/1990

RPI 1032

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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