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Official data from INPI

VALVULA LIMITADORA DO CURSO DA HASTE DE CILINDROS HIDRAULICOS

Em AnáliseInvention Patent
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Application data

Number

PI8101527

Type

Invention Patent

Filing

03/16/1981

Publication

-
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Progress at the INPI

  1. Filing03/16/81
  2. Publication
  3. Examination10/13/81
  4. Allowance05/08/84
  5. Grant12/26/84
  6. Invalidated12/17/85

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

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Latest action published by the INPI: 12/17/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MARCHESAN IMPLEMENT & MAQUIN

Inventors

M. L. (pessoa física)

Technical data

IPC Classification

A01B 63/114

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

200

12/17/1985

RPI 791

Pedido de licença voluntária

#17.1

07/23/1985

RPI 770

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/08/1984

RPI 707

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

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