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Official data from INPI

DISPOSITIVO APERFEICOADO PARA ESVAZIAR SILOS

Em AnáliseInvention Patent

Application data

Number

PI8300133

Type

Invention Patent

Filing

01/15/1982

Publication

10/04/1983

Progress at the INPI

  1. Filing01/15/82
  2. Publication10/04/83
  3. Examination01/14/86
  4. Allowance08/11/87
  5. Grant03/29/88
  6. Terminated11/16/88

The patent was granted on 03/29/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LAGNEAU JEAN HENRI [FR]

Inventors

L. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

10/07/1986

RPI 833

Solicitação de exame técnico

#4.1

01/14/1986

RPI 795

Publicação do pedido de patente

#3.1

10/04/1983

RPI 676

Pedido de patente depositado

#2.1

03/01/1983

RPI 645

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