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Official data from INPI

FORNO DE ARCO DE CORRENTE CONTÍNUA

ConcedidaInvention Patent
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Application data

Number

PI8501768

Type

Invention Patent

Filing

04/15/1985

Publication

12/10/1985
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Progress at the INPI

  1. Filing04/15/85
  2. Publication12/10/85
  3. Examination02/02/88
  4. Allowance12/06/88
  5. Grant10/24/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. A. (pessoa física)

SE

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Inventors

S. S. (pessoa física)

CH

Technical data

IPC Classification

F27D 11/10H05B 7/10

Priority claims

SE

8402101-3 · 04/16/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Republicação - classificação IPC

#15.11

01/10/1989

RPI 951

Deferimento

#9.1

12/06/1988

RPI 946

Republicação - classificação IPC

#15.11

11/22/1988

RPI 944

Solicitação de exame técnico

#4.1

02/02/1988

RPI 902

Publicação do pedido de patente

#3.1

12/10/1985

RPI 790

Pedido de patente depositado

#2.1

07/02/1985

RPI 767

Carta-patente expirada

#21.1

Patente extinta em 15/04/2000

07/15/2008

RPI 1958

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