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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE UM CATALISADOR PARA POLIMERIZAÇÃO DE ALFA-OLEFINAS

ConcedidaInvention Patent

Application data

Number

PI8201027

Type

Invention Patent

Filing

02/26/1982

Publication

01/04/1983

Progress at the INPI

  1. Filing02/26/82
  2. Publication01/04/83
  3. Examination03/12/85
  4. Allowance11/03/87
  5. Grant03/29/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Phillips Petroleum Company

US

See this company's full portfolio

Inventors

G. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

240.533 · 03/04/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

100

11/03/1987

RPI 889

120

06/09/1987

RPI 868

Petição de recurso

#12.2

05/20/1986

RPI 813

Indeferimento

#9.2

02/04/1986

RPI 798

Pedido de certificado de adição de invenção

#5.1

08/06/1985

RPI 772

Solicitação de exame técnico

#4.1

03/12/1985

RPI 751

Publicação do pedido de patente

#3.1

01/04/1983

RPI 637

Pedido de patente depositado

#2.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

Patente extinta em 26/02/97

07/01/2008

RPI 1956

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