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Official data from INPI

APERFEICOAMENTO EM OU REFERENTES A INJETOR EM CIRCUITO FECHADO PARA CALDEIRAS

ConcedidaInvention Patent

Application data

Number

PI8106392

Type

Invention Patent

Filing

10/05/1981

Publication

05/10/1983

Progress at the INPI

  1. Filing10/05/81
  2. Publication05/10/83
  3. Examination09/27/83
  4. Allowance12/11/84
  5. Grant06/25/85
  6. Terminated08/07/90

The patent was granted on 06/25/1985 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: 06/25/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MAQUINAS EINSFELD LTDA [BR]

Inventors

E. I. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Deferimento

#9.1

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

05/22/1984

RPI 709

Solicitação de exame técnico

#4.1

09/27/1983

RPI 675

Publicação do pedido de patente

#3.1

05/10/1983

RPI 655

Pedido de patente depositado

#2.1

11/24/1981

RPI 579

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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