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Official data from INPI

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Em AnáliseInvention Patent
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Application data

Number

PI8103976

Type

Invention Patent

Filing

06/24/1981

Publication

01/25/1983
View on INPI

Progress at the INPI

  1. Filing06/24/81
  2. Publication01/25/83
  3. Examination07/05/83
  4. Allowance08/21/84
  5. Grant03/26/85
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Haruo Okazaki e Japan Pipe Conveyor Co., Ltda.

SP, BR

Inventors

H. K. (pessoa física)

Technical data

IPC Classification

B65G 15/08B65G 15/64B65G 39/16

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

11/01/1988

RPI 941

320

07/21/1987

RPI 874

300

03/04/1987

RPI 854

201

10/21/1986

RPI 835

Pedido de licença voluntária

#17.1

06/03/1986

RPI 815

Pedido de licença compulsória

#20.1

08/27/1985

RPI 775

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Exigência - art. 36 da LPI

#6.1

01/17/1984

RPI 691

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

01/25/1983

RPI 640

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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