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Official data from INPI

COMPOSIÇÃO DE PASTA FLUIDA E PROCESSO DE MOLDAGEM PARA PREPARAR ARTIGOS CERÂMICOS E COMPOSIÇÃO DE ADITIVO DE MOLDAGEM

Arquivada/ExtintaInvention PatentPCT · US1988003166

Application data

Number

PI8807208

Type

Invention Patent

Filing

09/14/1988

Publication

10/17/1989

PCT

US1988003166

Progress at the INPI

  1. Filing09/14/88
  2. Publication10/17/89
  3. Examination07/23/91
  4. Allowance10/07/97
  5. Grant08/25/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

A. C. (pessoa física)

US

A. T. (pessoa física)

US

B. K. (pessoa física)

US

Technical data

Priority claims

US

097.883 · 09/17/1987

US

200.815 · 06/01/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/17/1989

RPI 991

Carta-patente expirada

#21.1

Patente extinta em 14/09/2008

12/18/2012

RPI 2189

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

10/07/1997

RPI 1401

Exigência - art. 36 da LPI

#6.1

11/19/1996

RPI 1355

Solicitação de exame técnico

#4.1

07/23/1991

RPI 1077

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