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Official data from INPI

CIRCUITO PARA AMPLIFICAR SELETIVAMENTE SINAIS DE ÁUDIO NOS MODOS SUPERDISTORCIDOS E NÃO-DISTORCIDOS

PublicadaInvention Patent

Application data

Number

PI8802983

Type

Invention Patent

Filing

06/17/1988

Publication

01/10/1989

Progress at the INPI

  1. Filing06/17/88
  2. Publication01/10/89
  3. Examination01/16/90
  4. Allowance09/12/95
  5. Abandoned
  6. In force

The application was allowed on 09/12/1995 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. C. (pessoa física)

US

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Inventors

J. S. (pessoa física)

US

J. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

063.924 · 06/19/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/10/1989

RPI 951

Pedido de patente depositado

#2.1

11/08/1988

RPI 942

Arquivamento - Art. 38 §2° da LPI

#11.4

09/10/1996

RPI 1345

Notificação para pagamento de retribuição

#13.1

03/05/1996

RPI 1318

Deferimento

#9.1

09/12/1995

RPI 1293

Solicitação de exame técnico

#4.1

01/16/1990

RPI 1002

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