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Official data from INPI

CIRCUITO DE REGULAGEM DE FASE

PublicadaInvention Patent

Application data

Number

PI8705563

Type

Invention Patent

Filing

10/19/1987

Publication

05/24/1988

Progress at the INPI

  1. Filing10/19/87
  2. Publication05/24/88
  3. Examination11/20/90
  4. Allowance11/30/93
  5. Grant06/28/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

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Inventors

F. S. (pessoa física)

DE

H. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 35 641.7 · 10/20/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/24/1988

RPI 918

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 19/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

04/19/1994

RPI 1220

Deferimento

#9.1

11/30/1993

RPI 1200

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

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