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Official data from INPI

SISTEMA SENSOR, SISTEMA DE CONTROLE DE NÍVEL, SISTEMA DE MUNHONEIRA E VEDAÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100923

Type

Invention Patent

Filing

03/07/1991

Publication

11/05/1991

Progress at the INPI

  1. Filing03/07/91
  2. Publication11/05/91
  3. Examination01/12/93
  4. Allowance01/30/96
  5. Grant12/31/96
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 06/22/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fisher Controls International, Inc

US

See this company's full portfolio

Inventors

R. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

491.042 · 03/08/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/03/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

12/31/1996

RPI 1361

Notificação para pagamento de retribuição

#13.1

07/09/1996

RPI 1336

Deferimento

#9.1

01/30/1996

RPI 1313

Solicitação de exame técnico

#4.1

01/12/1993

RPI 1154

Publicação do pedido de patente

#3.1

11/05/1991

RPI 1092

Pedido de patente depositado

#2.1

09/03/1991

RPI 1083

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