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Official data from INPI

MATRIZ DE CÉLULA DE COMBUSTÍVEL

ConcedidaInvention Patent

Application data

Number

PI8204469

Type

Invention Patent

Filing

07/29/1982

Publication

07/19/1983

Progress at the INPI

  1. Filing07/29/82
  2. Publication07/19/83
  3. Examination09/10/85
  4. Allowance10/14/86
  5. Grant06/30/87
  6. Terminated06/26/90

The patent was granted on 06/30/1987 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

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Inventors

R. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

288.521 · 07/30/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Republicação - classificação IPC

#15.11

05/05/1987

RPI 863

Notificação para pagamento de retribuição

#13.1

03/10/1987

RPI 855

Deferimento

#9.1

10/14/1986

RPI 834

Solicitação de exame técnico

#4.1

09/10/1985

RPI 777

Republicação - classificação IPC

#15.11

03/07/1984

RPI 698

Publicação do pedido de patente

#3.1

07/19/1983

RPI 665

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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