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Official data from INPI

PROCESSO DE FABRICAÇÃO DE UM ELEMENTO ISOLANTE COMPORTAMENTO UMA PARTE CENTRAL ENVOLVIDA DE UMA PLURALIDADE DE ABAS, E ELEMENTO ISOLANTE OBTIDO POR ESSE PROCESSO,.

ConcedidaInvention Patent

Application data

Number

PI8004293

Type

Invention Patent

Filing

07/10/1980

Publication

-

Progress at the INPI

  1. Filing07/10/80
  2. Publication
  3. Examination11/17/81
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ceraver.

FR

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Inventors

P. L. (pessoa física)

T. D. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

79180311 · 07/11/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

01/11/1983

RPI 638

Solicitação de exame técnico

#4.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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