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Official data from INPI

PROJETIL DESOBSTRUIDOR PARA TUBULAÇÕES LONGAS

Em AnáliseInvention Patent

Application data

Number

PI8204805

Type

Invention Patent

Filing

08/17/1982

Publication

03/27/1984

Progress at the INPI

  1. Filing08/17/82
  2. Publication03/27/84
  3. Examination06/12/84
  4. Allowance05/07/85
  5. Grant10/29/85
  6. Invalidated06/09/87

The patent was invalidated by the INPI in an administrative invalidity proceeding. Protection no longer exists.

Talk to a specialist

Latest action published by the INPI: 06/09/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. Esteves & Cia LTDA

RJ, BR

Inventors

A. E. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

200

06/09/1987

RPI 868

Pedido de licença voluntária

#17.1

12/02/1986

RPI 841

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

08/27/1985

RPI 775

Deferimento

#9.1

05/07/1985

RPI 759

Pedido de certificado de adição de invenção

#5.1

11/13/1984

RPI 734

Solicitação de exame técnico

#4.1

06/12/1984

RPI 712

Publicação do pedido de patente

#3.1

03/27/1984

RPI 701

Pedido de patente depositado

#2.1

09/28/1982

RPI 623

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