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Official data from INPI

"PROCESSO DESCONTÍNUO PARA PREPARAÇÃO DE UM PIGMENTO DE DIÓXIDO DE TITÂNIO REVESTIDO"

Arquivada/ExtintaInvention PatentPCT · US1989001444

Application data

Number

PI8907368

Type

Invention Patent

Filing

04/12/1989

Publication

04/23/1991

PCT

US1989001444

Progress at the INPI

  1. Filing04/12/89
  2. Publication04/23/91
  3. Examination08/20/91
  4. Allowance09/15/98
  5. Grant06/29/99
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. 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

Technical data

IPC Classification

Priority claims

US

182.087 · 04/15/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 29/06/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

06/29/1999

RPI 1486

Deferimento

#9.1

09/15/1998

RPI 1447

Exigência - art. 36 da LPI

#6.1

01/13/1998

RPI 1412

Solicitação de exame técnico

#4.1

08/20/1991

RPI 1081

Notificação de entrada na fase nacional - PCT

#1.3

04/23/1991

RPI 1064

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