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Official data from INPI

DIVISOR DE FREQUÊNCIA

Em AnáliseInvention Patent

Application data

Number

PI8507086

Type

Invention Patent

Filing

12/11/1985

Publication

03/31/1987

Progress at the INPI

  1. Filing12/11/85
  2. Publication03/31/87
  3. Examination06/28/88
  4. Allowance07/14/92
  5. Grant03/30/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. E. (pessoa física)

SE

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Inventors

G. M. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8406314-8 · 12/12/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/28/1988

RPI 923

Notificação de entrada na fase nacional - PCT

#1.3

03/31/1987

RPI 858

Carta-patente expirada

#21.1

Patente extinta em 11/12/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

03/30/1993

RPI 1165

Notificação para pagamento de retribuição

#13.1

12/01/1992

RPI 1148

Deferimento

#9.1

07/14/1992

RPI 1128

Exigência - art. 36 da LPI

#6.1

12/10/1991

RPI 1097

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