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Official data from INPI

CATALISADOR PROCESSO PARA A PREPARACAO DO MESMO E PROCESSO PARA OXIDAR UMA MERCAPTANA

ConcedidaInvention Patent

Application data

Number

PI7701063

Type

Invention Patent

Filing

02/24/1976

Publication

-

Progress at the INPI

  1. Filing02/24/76
  2. Publication
  3. Examination
  4. Allowance07/13/82
  5. Grant01/25/83
  6. Expired07/27/93

The letters patent expired on 07/27/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 01/25/1983. We update with every new RPI gazette, published weekly.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Deferimento

#9.1

07/13/1982

RPI 612

Exigência - art. 36 da LPI

#6.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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