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Official data from INPI

POLIMERO AUTO-RESISTENTE AO ENVELHECIMENTO;E PROCESSO PARA A SUA PRODUCAO

ConcedidaInvention Patent

Application data

Number

PI7705182

Type

Invention Patent

Filing

08/09/1976

Publication

-

Progress at the INPI

  1. Filing08/09/76
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  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: 07/26/1983. We update with every new RPI gazette, published weekly.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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