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Official data from INPI

DISPOSITIVO DE MEDIÇÃO DE FLUXO DE FLUIDO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100292

Type

Invention Patent

Filing

01/23/1991

Publication

10/22/1991

Progress at the INPI

  1. Filing01/23/91
  2. Publication10/22/91
  3. Examination12/24/91
  4. Allowance01/03/95
  5. Grant06/27/95
  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

C. C. (pessoa física)

US

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Inventors

K. K. (pessoa física)

US

W. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/473,481 · 02/01/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/01/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

06/27/1995

RPI 1282

Deferimento

#9.1

01/03/1995

RPI 1257

Exigência - art. 36 da LPI

#6.1

09/06/1994

RPI 1240

Solicitação de exame técnico

#4.1

12/24/1991

RPI 1099

Publicação do pedido de patente

#3.1

10/22/1991

RPI 1090

Pedido de patente depositado

#2.1

08/06/1991

RPI 1079

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