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Official data from INPI

PROCESSO PARA OBTENÇÃO DE PIGMENTOS DE DIÓXIDO DE TITÂNIO

Arquivada/ExtintaInvention PatentPCT · US1987003453

Application data

Number

PI8707965

Type

Invention Patent

Filing

12/28/1987

Publication

03/20/1990

PCT

US1987003453

Progress at the INPI

  1. Filing12/28/87
  2. Publication03/20/90
  3. Examination06/19/90
  4. Allowance10/03/95
  5. Grant04/30/96
  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: 07/29/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. C. (pessoa física)

US

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Inventors

J. B. (pessoa física)

US

P. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

006.873 · 01/27/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/30/1996

RPI 1326

Republicação - classificação IPC

#15.11

10/24/1995

RPI 1299

Deferimento

#9.1

10/03/1995

RPI 1296

Conhecimento de parecer técnico

#7.1

03/21/1995

RPI 1268

Solicitação de exame técnico

#4.1

06/19/1990

RPI 1023

Notificação de entrada na fase nacional - PCT

#1.3

03/20/1990

RPI 1010

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