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Official data from INPI

Amplificador de comutação para amplificação digital de potência.

ConcedidaInvention Patent

Application data

Number

PI8402148

Type

Invention Patent

Filing

05/08/1984

Publication

12/18/1984

Progress at the INPI

  1. Filing05/08/84
  2. Publication12/18/84
  3. Examination01/27/87
  4. Allowance07/12/88
  5. Grant03/28/89
  6. Terminated05/07/96

The patent was granted on 03/28/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BBC Brown, Boveri & Company Limited

CH

BBC Brown, Boveri & Company Limited.

CH

See this company's full portfolio

Inventors

A. F. (pessoa física)

CH

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/28/1989

RPI 962

Notificação para pagamento de retribuição

#13.1

11/16/1988

RPI 943

Deferimento

#9.1

07/12/1988

RPI 925

Exigência - art. 36 da LPI

#6.1

01/19/1988

RPI 900

Solicitação de exame técnico

#4.1

01/27/1987

RPI 849

Publicação do pedido de patente

#3.1

12/18/1984

RPI 739

Pedido de patente depositado

#2.1

07/17/1984

RPI 717

Anuidade - prazo legal encerrado

#18.2

05/07/1996

RPI 1327

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