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Official data from INPI

AMPLIFICADOR DE POTENCIA MODULADO POR PULSOS DE DURACAO VARIAVEL

ConcedidaInvention Patent

Application data

Number

PI8108924

Type

Invention Patent

Filing

12/19/1980

Publication

11/30/1982

Progress at the INPI

  1. Filing12/19/80
  2. Publication11/30/82
  3. Examination03/20/84
  4. Allowance03/05/85
  5. Grant10/01/85
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 10/01/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ERICSSON TELEFON AB L M [SE]

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Inventors

H. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/01/1985

RPI 780

Notificação para pagamento de retribuição

#13.1

06/25/1985

RPI 766

Deferimento

#9.1

03/05/1985

RPI 750

Exigência - art. 36 da LPI

#6.1

10/23/1984

RPI 731

Solicitação de exame técnico

#4.1

03/20/1984

RPI 700

Notificação de entrada na fase nacional - PCT

#1.3

11/30/1982

RPI 632

Carta-patente expirada

#21.1

Patente extinta em 08/12/96

08/19/2008

RPI 1963

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