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Official data from INPI

DISPOSITIVO DE TRACIONAMENTO DE SACO DE FILTRO, PESO PARA EMPREGO EM UM DISPOSITIVO DE TRACIONAMENTODE SACO DE FILTRO E PROCESSO PARA PRENDER E SUBSTITUIR UM SACO DE FILTRO EM UMA CÂMARA DE SACOS DE FILTRO

ConcedidaInvention Patent

Application data

Number

PI8105055

Type

Invention Patent

Filing

08/05/1981

Publication

04/20/1982

Progress at the INPI

  1. Filing08/05/81
  2. Publication04/20/82
  3. Examination08/17/82
  4. Allowance07/14/87
  5. Grant12/29/87
  6. In force08/05/01

The patent was granted on 12/29/1987 and is in force until 08/05/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:08/05/2001

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Latest action published by the INPI: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

Inventors

B. A. (pessoa física)

Technical data

IPC Classification

Priority claims

US

175.376 · 08/06/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

04/01/1986

RPI 806

Conhecimento de parecer técnico

#7.1

09/18/1984

RPI 726

Solicitação de exame técnico

#4.1

08/17/1982

RPI 617

Publicação do pedido de patente

#3.1

04/20/1982

RPI 600

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