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Official data from INPI

COMPOSIÇÃO RETICULÁVEL Á BASE DE POLISSILOXANO RESISTENTE A ALTAS TEMPERATURAS

PublicadaInvention Patent

Application data

Number

PI8706384

Type

Invention Patent

Filing

11/23/1987

Publication

06/13/1989

Progress at the INPI

  1. Filing11/23/87
  2. Publication06/13/89
  3. Examination07/30/91
  4. Allowance06/06/95
  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.

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Latest action published by the INPI: 06/13/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhodia S/A

SP, BR

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Inventors

J. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

06/13/1989

RPI 973

Pedido de patente depositado

#2.1

01/03/1989

RPI 950

Carta-patente expirada

#21.1

Patente extinta em 23/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/26/1996

RPI 1321

Notificação para pagamento de retribuição

#13.1

10/17/1995

RPI 1298

Deferimento

#9.1

06/06/1995

RPI 1279

Exigência - art. 36 da LPI

#6.1

10/11/1994

RPI 1245

Solicitação de exame técnico

#4.1

07/30/1991

RPI 1078

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