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Official data from INPI

GERADOR DE FREQUÊNCIA DE CANAL PARA UM GERADOR DE SINAL COERENTE RELACIONADO COM INCREMENTO, E PROCESSO PARA GERAR UM SINAL COERENTE DE SAÍDA DE FREQUÊNCIA

Arquivada/ExtintaInvention PatentPCT · US1990002695

Application data

Number

PI9007386

Type

Invention Patent

Filing

05/18/1990

Publication

05/12/1992

PCT

US1990002695

Progress at the INPI

  1. Filing05/18/90
  2. Publication05/12/92
  3. Examination07/06/93
  4. Allowance11/14/95
  5. Grant10/29/96
  6. Expired06/15/10

The letters patent expired on 06/15/2010: 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: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Scientific-Atlanta, Inc

US

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Inventors

L. M. (pessoa física)

US

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

354.277 · 05/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/05/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

10/29/1996

RPI 1352

Notificação para pagamento de retribuição

#13.1

03/19/1996

RPI 1320

Deferimento

#9.1

11/14/1995

RPI 1302

Exigência - art. 36 da LPI

#6.1

05/09/1995

RPI 1275

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Notificação de entrada na fase nacional - PCT

#1.3

05/12/1992

RPI 1119

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