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Official data from INPI

TUCHO DE VÁLVULA DE REGULAGEM AUTOMÁTICA HIDRÁULICA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9104185

Type

Invention Patent

Filing

09/27/1991

Publication

06/02/1992

Progress at the INPI

  1. Filing09/27/91
  2. Publication06/02/92
  3. Examination12/01/92
  4. Allowance09/26/95
  5. Grant06/25/96
  6. Expired06/29/10

The letters patent expired on 06/29/2010: 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: 06/29/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. K. (pessoa física)

DE

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Inventors

W. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 40 30 987.8 · 10/01/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/09/2006

06/29/2010

RPI 2060

Concessão da patente

#16.1

06/25/1996

RPI 1334

Deferimento

#9.1

09/26/1995

RPI 1295

Conhecimento de parecer técnico

#7.1

03/28/1995

RPI 1269

Solicitação de exame técnico

#4.1

12/01/1992

RPI 1148

Publicação do pedido de patente

#3.1

06/02/1992

RPI 1122

Pedido de patente depositado

#2.1

11/05/1991

RPI 1092

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