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Official data from INPI

PROCESSO PARA A PREPARACAO E A PRODUCAO DE UM CATALISADOR ATIVO PARA A POLIMERIZACAO DE OLEFINA E PROCESSO PARA A POLIMERIZACAO DE OLEFINAS PARA PRODUZIR UM POLIMERO

ConcedidaInvention Patent

Application data

Number

PI7807864

Type

Invention Patent

Filing

12/05/1977

Publication

-

Progress at the INPI

  1. Filing12/05/77
  2. Publication
  3. Examination
  4. Allowance01/25/83
  5. Grant08/30/83
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 08/30/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PHILLIPS PETROLEUM CO

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Inventors

M. M. (pessoa física)

W. M. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

05/31/1983

RPI 658

Deferimento

#9.1

01/25/1983

RPI 640

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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