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Official data from INPI

PROCESSO PARA A PREPARACAO DE UM COMPONENTE CATALITICO PARA(CO)POLIMERIZAR ALFA-OLEFINAS

ConcedidaInvention Patent

Application data

Number

PI7902268

Type

Invention Patent

Filing

04/12/1978

Publication

-

Progress at the INPI

  1. Filing04/12/78
  2. Publication
  3. Examination01/12/82
  4. Allowance03/08/83
  5. Grant10/25/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 10/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MONTEDISON SPA

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Inventors

C. G. (pessoa física)

S. U. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

06/28/1983

RPI 662

Deferimento

#9.1

03/08/1983

RPI 646

6.2

06/22/1982

RPI 609

Solicitação de exame técnico

#4.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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