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Official data from INPI

DISPOSITIVO ELETROGRAFICO

ConcedidaInvention Patent

Application data

Number

PI8106109

Type

Invention Patent

Filing

09/25/1980

Publication

06/15/1982

Progress at the INPI

  1. Filing09/25/80
  2. Publication06/15/82
  3. Examination07/24/84
  4. Allowance08/13/85
  5. Grant03/25/86
  6. Terminated08/07/90

The patent was granted on 03/25/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

A. F. (pessoa física)

P. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/17/1985

RPI 791

Deferimento

#9.1

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

07/24/1984

RPI 718

Publicação do pedido de patente

#3.1

06/15/1982

RPI 608

Pedido de patente depositado

#2.1

11/10/1981

RPI 577

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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