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Official data from INPI

Instalação de prova para a indicação de uma tensão elétrica.

ConcedidaInvention Patent

Application data

Number

PI7908877

Type

Invention Patent

Filing

10/24/1979

Publication

-

Progress at the INPI

  1. Filing10/24/79
  2. Publication
  3. Examination03/01/83
  4. Allowance02/28/84
  5. Grant08/28/84
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 08/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

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Inventors

K. M. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 28 46 675.3 · 10/26/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/12/1984

RPI 712

Deferimento

#9.1

02/28/1984

RPI 697

Exigência - art. 36 da LPI

#6.1

10/04/1983

RPI 676

Solicitação de exame técnico

#4.1

03/01/1983

RPI 645

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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