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Official data from INPI

PROCESSO APERFEICOADO PARA POLIMERIZAR OU COPOLIMERIZAR UMA ALFA-OLEFINA,E CATALISADOR PARA USO NO PROCESSO

Em AnáliseInvention Patent

Application data

Number

PI7601381

Type

Invention Patent

Filing

03/03/1976

Publication

-

Progress at the INPI

  1. Filing03/03/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Terminated09/18/90

The patent was granted on 07/27/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. I. (pessoa física)

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Inventors

K. N. (pessoa física)

O. K. (pessoa física)

T. A. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.3

11/01/1988

RPI 941

22.3

06/16/1987

RPI 869

18.1

09/16/1986

RPI 830

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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