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Official data from INPI

DISPOSITIVO DE SUJEICAO DE ELETRODOS COM UM CORPO PORTADOR DE ELETRODOS PARA INSTALACOES ELETRICAS DE REFUNDICAO

ConcedidaInvention Patent

Application data

Number

PI8000913

Type

Invention Patent

Filing

02/15/1979

Publication

-

Progress at the INPI

  1. Filing02/15/79
  2. Publication
  3. Examination12/15/81
  4. Allowance07/05/83
  5. Grant12/27/83
  6. Expired05/16/95

The letters patent expired on 05/16/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LEYBOLD HERAEUS GMBH & CO KG

Inventors

G. H. (pessoa física)

R. U. (pessoa física)

W. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/05/1983

RPI 663

Exigência - art. 36 da LPI

#6.1

01/11/1983

RPI 638

Solicitação de exame técnico

#4.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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