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Official data from INPI

MOTOR DE COMBUSTAO INTERNA E PROCESSO DE INIBIR A EXPLORACAO PREMATURA E A GERACAO DE OXIDOS DE NITROGENIO EM UM MOTOR DE COMBUSTAO INTERNA

Em AnáliseInvention Patent

Application data

Number

PI7807774

Type

Invention Patent

Filing

11/28/1977

Publication

-

Progress at the INPI

  1. Filing11/28/77
  2. Publication
  3. Examination
  4. Allowance12/07/82
  5. Grant06/28/83
  6. Terminated06/14/88

The patent was granted on 06/28/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BILLINGS ENERGY CORP

Inventors

A. V. (pessoa física)

W. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

06/28/1983

RPI 662

Notificação para pagamento de retribuição

#13.1

05/17/1983

RPI 656

Deferimento

#9.1

12/07/1982

RPI 633

Exigência - art. 36 da LPI

#6.1

06/08/1982

RPI 607

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