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Official data from INPI

Dispositivo regulador da vazão de produtos lançados ao solo por máquinas e implementos agrícolas.

ConcedidaInvention Patent

Application data

Number

PI8501038

Type

Invention Patent

Filing

03/06/1985

Publication

10/14/1986

Progress at the INPI

  1. Filing03/06/85
  2. Publication10/14/86
  3. Examination12/30/86
  4. Allowance12/29/87
  5. Grant09/27/88
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Semeato S/A Indústria e Comércio.

RS, BR

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Inventors

R. F. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

12/30/1986

RPI 845

Publicação do pedido de patente

#3.1

10/14/1986

RPI 834

Pedido de patente depositado

#2.1

05/28/1985

RPI 762

Carta-patente expirada

#21.1

Patente extinta em 06/03/2000

07/15/2008

RPI 1958

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