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Official data from INPI

APARELHO DE REPRODUÇÃO DE SINAIS REGISTRADOS EM DISCOS MAGNÉTICOS

Em ExigênciaInvention Patent

Application data

Number

PI8502398

Type

Invention Patent

Filing

05/21/1985

Publication

01/21/1986

Progress at the INPI

  1. Filing05/21/85
  2. Publication01/21/86
  3. Examination02/09/88
  4. Allowance08/28/90
  5. Grant03/26/91
  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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

JP

See this company's full portfolio

Inventors

K. K. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

102056/1984 · 05/21/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/24/1989

RPI 992

Solicitação de exame técnico

#4.1

02/09/1988

RPI 903

Publicação do pedido de patente

#3.1

01/21/1986

RPI 796

Pedido de patente depositado

#2.1

07/30/1985

RPI 771

Carta-patente expirada

#21.1

Patente extinta em 21/05/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/11/1990

RPI 1045

Deferimento

#9.1

08/28/1990

RPI 1030

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