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Official data from INPI

COMPOSICAO CATALISADORA DE POLIMERIZACAO E PROCESSO PARA POLIMERIZAR ALFA OLEFINAS

Em AnáliseInvention Patent

Application data

Number

PI7700658

Type

Invention Patent

Filing

10/12/1976

Publication

-

Progress at the INPI

  1. Filing10/12/76
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant02/28/84
  6. Terminated12/08/87

The patent was granted on 02/28/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO

See this company's full portfolio

Inventors

A. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Cessão de direito de exploração

#22.1

09/17/1985

RPI 778

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

8.1

05/24/1983

RPI 657

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

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