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Official data from INPI

ADITIVO PARA COMBUSTIVEIS E PROCESSO PARA TRATAMENTO DOS MESMOS

Em AnáliseInvention Patent

Application data

Number

PI7802037

Type

Invention Patent

Filing

06/24/1977

Publication

-

Progress at the INPI

  1. Filing06/24/77
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant09/27/83
  6. Terminated02/25/86

The patent was granted on 09/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. G. (pessoa física)

Inventors

W. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

02/25/1986

RPI 801

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

15.0

09/28/1982

RPI 623

Conhecimento de parecer técnico

#7.1

07/20/1982

RPI 613

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