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Official data from INPI

APERFEIÇOAMENTO EM RECEPTOR DE RÁDIO E PROCESSO DE MINIMIZAR RUÍDO ENTRE ESTAÇÕES

PublicadaInvention Patent

Application data

Number

PI8806494

Type

Invention Patent

Filing

12/08/1988

Publication

08/22/1989

Progress at the INPI

  1. Filing12/08/88
  2. Publication08/22/89
  3. Examination06/12/90
  4. Allowance12/07/93
  5. Grant08/30/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Motorola, Inc.

US

See this company's full portfolio

Inventors

L. E. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

145,335 · 01/19/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/22/1989

RPI 983

Pedido de patente depositado

#2.1

04/18/1989

RPI 965

Carta-patente expirada

#21.1

Patente extinta em 08/12/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

04/26/1994

RPI 1221

Deferimento

#9.1

12/07/1993

RPI 1201

Solicitação de exame técnico

#4.1

06/12/1990

RPI 1022

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