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Official data from INPI

PROCESSO PARA A POLIMERIZAÇÃO DE UMA ALIMENTAÇÃO DE ALFA-MONOOLEFINA.

Em AnáliseInvention Patent

Application data

Number

PI8500856

Type

Invention Patent

Filing

02/27/1985

Publication

10/15/1985

Progress at the INPI

  1. Filing02/27/85
  2. Publication10/15/85
  3. Examination08/05/86
  4. Allowance02/24/93
  5. Grant08/31/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montell Technology Company B.V.

NL

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

B. G. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

US

584416 · 02/28/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

11/25/1986

RPI 840

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

10/15/1985

RPI 782

Pedido de patente depositado

#2.1

05/14/1985

RPI 760

Carta-patente expirada

#21.1

Patente extinta em 27/02/2000

07/15/2008

RPI 1958

Transferência deferida

#25.1

11/25/1997

RPI 1408

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

06/08/1993

RPI 1175

Deferimento

#9.1

02/24/1993

RPI 1160

Exigência - art. 36 da LPI

#6.1

11/26/1991

RPI 1095

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