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Official data from INPI

COMPOSIÇÃO TERMOESTABILIZADA DE UM POLÍMERO ALTERNADO DE MONÓXIDO DE CARBONO E UM COMPOSTO OLEFINICAMENTE INSATURADO

PublicadaInvention Patent

Application data

Number

PI8802017

Type

Invention Patent

Filing

04/27/1988

Publication

11/29/1988

Progress at the INPI

  1. Filing04/27/88
  2. Publication11/29/88
  3. Examination12/04/90
  4. Allowance06/06/95
  5. Grant11/28/95
  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.

Talk to a specialist

Latest action published by the INPI: 11/29/1988. 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

A. S. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

GB

8710171 · 04/29/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/29/1988

RPI 945

Pedido de patente depositado

#2.1

09/13/1988

RPI 934

Carta-patente expirada

#21.1

Patente extinta em 27/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/28/1995

RPI 1304

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

01/25/1994

RPI 1208

Solicitação de exame técnico

#4.1

12/04/1990

RPI 1044

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