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Official data from INPI

APERFEICOAMENTO EM INTERRUPTOR DE CHAVE ELETRICO

Em AnáliseInvention Patent

Application data

Number

PI8001279

Type

Invention Patent

Filing

03/05/1979

Publication

-

Progress at the INPI

  1. Filing03/05/79
  2. Publication
  3. Examination10/18/83
  4. Allowance08/07/84
  5. Grant02/26/85
  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: 03/10/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. W. (pessoa física)

See this company's full portfolio

Inventors

B. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

03/10/1987

RPI 855

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

03/27/1984

RPI 701

Solicitação de exame técnico

#4.1

10/18/1983

RPI 678

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

20.7

07/02/1991

RPI 1074

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