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Official data from INPI

BALIZADOR DE SINALIZAÇÃO PARA LINHAS DE TRANSMISSÃO.

ConcedidaInvention Patent

Application data

Number

PI8007190

Type

Invention Patent

Filing

11/06/1980

Publication

07/13/1982

Progress at the INPI

  1. Filing11/06/80
  2. Publication07/13/82
  3. Examination08/07/84
  4. Allowance08/13/85
  5. Grant05/27/86
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Construções Elétricas Eltec S/A

SP, BR

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Inventors

H. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

12/17/1985

RPI 791

Deferimento

#9.1

08/13/1985

RPI 773

8.1

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

08/07/1984

RPI 720

Publicação do pedido de patente

#3.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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