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Official data from INPI

REGULADOR DE PRESSÃO DE FLUÍDOS LÍQUIDOS OU GASOSOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905882

Type

Invention Patent

Filing

11/06/1989

Publication

05/14/1991

Progress at the INPI

  1. Filing11/06/89
  2. Publication05/14/91
  3. Examination08/20/91
  4. Allowance06/28/94
  5. Grant04/25/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VDO Kienzle Instrumentos Ltda

SP, BR

See this company's full portfolio

Inventors

F. C. (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 06/11/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

11/01/1994

RPI 1248

Deferimento

#9.1

06/28/1994

RPI 1230

Exigência - art. 36 da LPI

#6.1

12/21/1993

RPI 1203

14.4

06/29/1993

RPI 1178

Solicitação de exame técnico

#4.1

08/20/1991

RPI 1081

Publicação do pedido de patente

#3.1

05/14/1991

RPI 1067

14.1

08/07/1990

RPI 1027

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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