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Official data from INPI

CATALISADOR PARA POLIMERIZACAO DE ALFA-OLEFINAS E PROCESSOS APLICADO O MESMO

ConcedidaInvention Patent

Application data

Number

PI7705052

Type

Invention Patent

Filing

08/02/1976

Publication

-

Progress at the INPI

  1. Filing08/02/76
  2. Publication
  3. Examination
  4. Allowance05/31/83
  5. Grant11/29/83
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

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Inventors

I. A. (pessoa física)

I. K. (pessoa física)

O. M. (pessoa física)

O. T. (pessoa física)

S. H. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/31/1983

RPI 658

Exigência - art. 36 da LPI

#6.1

11/09/1982

RPI 629

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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