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Official data from INPI

TROCA FILTRO HIDRÁULICO PARA MÁQUINA EXTRUSORA DE TERMOPLÁSTICOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101290

Type

Invention Patent

Filing

03/26/1991

Publication

08/20/1991

Progress at the INPI

  1. Filing03/26/91
  2. Publication08/20/91
  3. Examination10/08/91
  4. Allowance01/12/99
  5. Grant10/19/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rulli Standard Indústria e Comércio de Máquinas Ltda

SP, BR

Inventors

L. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/03/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

10/19/1999

RPI 1502

Deferimento

#9.1

01/12/1999

RPI 1462

Solicitação de exame técnico

#4.1

10/08/1991

RPI 1088

Pedido de patente depositado

#2.1

08/20/1991

RPI 1081

Publicação antecipada

#3.2

08/20/1991

RPI 1081

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