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Official data from INPI

CATALISADOR PARA REACOES DE METANACAO E PROCESSO PARA SUA UTILIZACAO

Em AnáliseInvention Patent

Application data

Number

PI7603442

Type

Invention Patent

Filing

06/03/1975

Publication

-

Progress at the INPI

  1. Filing06/03/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. A. (pessoa física)

Inventors

S. P. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

09/30/1986

RPI 832

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

02/02/1982

RPI 589

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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