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Official data from INPI

SUPORTE DE CATALISADOR;CATALISADOR;PROCESSO APERFEICOADO PARA A PREPARACAO DE CATALISADOR PARA POLIMERIZAR OLEFINAS;PROCESSO PARA A PRODUCAO DE RESINA DE POLIOLEFINA;RESINA DE POLIETILENO;E PROCESSO PARA PREPARAR RECIPIENTES MOLDADOS

ConcedidaInvention Patent

Application data

Number

PI7803329

Type

Invention Patent

Filing

05/25/1977

Publication

-

Progress at the INPI

  1. Filing05/25/77
  2. Publication
  3. Examination
  4. Allowance11/01/83
  5. Grant04/24/84
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 04/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. C. (pessoa física)

Inventors

K. S. (pessoa física)

R. L. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/14/1984

RPI 695

Deferimento

#9.1

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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