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Official data from INPI

PROCESSO DE PREPARAÇÃO DE MATÉRIA INTERPOLÍMERA REFORÇADORA DE MATRIZES TERMOPLÁSTICAS RÍGIDAS E COMPOSIÇÕES REFORÇADAS CORRESPONDENTES

PublicadaInvention Patent
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Application data

Number

PI8800413

Type

Invention Patent

Filing

01/29/1988

Publication

09/20/1988
View on INPI

Progress at the INPI

  1. Filing01/29/88
  2. Publication09/20/88
  3. Examination12/11/90
  4. Allowance06/06/95
  5. Grant03/26/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Atochem

FR

Elf Atochem S.A

FR

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Inventors

J. R. (pessoa física)

FR

P. G. (pessoa física)

FR

Technical data

IPC Classification

C08F 2/26C08F 273/00C08F 293/00C08L 53/00

Priority claims

FR

87-01.169 · 01/30/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/20/1988

RPI 935

Pedido de patente depositado

#2.1

05/03/1988

RPI 915

Carta-patente expirada

#21.1

Patente extinta em 29/01/2003

09/02/2008

RPI 1965

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

02/07/1995

RPI 1262

14.4

03/29/1994

RPI 1217

Exigência - art. 36 da LPI

#6.1

01/25/1994

RPI 1208

14.1

12/17/1991

RPI 1098

Solicitação de exame técnico

#4.1

12/11/1990

RPI 1045

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