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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE POLÍMEROS DE MONÓXIDO DE CARBONO COM COMPOSTOS OLEFINICAMENTE INSATURADOS

PublicadaInvention Patent

Application data

Number

PI8901955

Type

Invention Patent

Filing

04/25/1989

Publication

12/05/1989

Progress at the INPI

  1. Filing04/25/89
  2. Publication12/05/89
  3. Examination12/24/91
  4. Allowance07/16/96
  5. Grant04/29/97
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

G. R. (pessoa física)

NL

J. B. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

NL

8801095 · 04/27/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/05/1989

RPI 998

Pedido de patente depositado

#2.1

05/30/1989

RPI 971

Carta-patente expirada

#21.1

Patente extinta em 25/04/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

04/29/1997

RPI 1378

Notificação para pagamento de retribuição

#13.1

03/11/1997

RPI 1371

Deferimento

#9.1

07/16/1996

RPI 1337

Exigência - art. 36 da LPI

#6.1

09/13/1994

RPI 1241

Solicitação de exame técnico

#4.1

12/24/1991

RPI 1099

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