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Official data from INPI

COMPOSIÇÃO COMBUSTÍVEL AQUOSA DE GASOLINA-ETANOL, DE FASE ESTÁVEL

ConcedidaInvention Patent

Application data

Number

PI8306714

Type

Invention Patent

Filing

12/07/1983

Publication

07/17/1984

Progress at the INPI

  1. Filing12/07/83
  2. Publication07/17/84
  3. Examination10/15/85
  4. Allowance05/16/89
  5. Grant11/28/89
  6. Terminated02/18/92

The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

E. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

448.280 · 12/09/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/12/1989

RPI 986

Deferimento

#9.1

05/16/1989

RPI 969

Exigência - art. 36 da LPI

#6.1

05/24/1988

RPI 918

Pedido de certificado de adição de invenção

#5.1

01/07/1986

RPI 794

Solicitação de exame técnico

#4.1

10/15/1985

RPI 782

Publicação do pedido de patente

#3.1

07/17/1984

RPI 717

Pedido de patente depositado

#2.1

02/21/1984

RPI 696

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

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