Official data from INPI

MEDIDOR DE VAZÃO TIPO PLACA DE ORIFÍCIO EM ANEL PARTIDO

Prazo de SigiloUtility Model

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Application data

Number

MU6801613

Type

Utility Model

Filing

07/11/1988

Publication

03/20/1990

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Progress at the INPI

Filing07/11/88
Publication03/20/90
Examination08/21/90
Allowance12/07/93
Grant05/30/95
Expired09/25/01

The letters patent expired on 09/25/2001: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 03/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Digimat Instrumentos de Medição Ltda

SP, BR

Inventors

G. D. (pessoa física)

Technical data

IPC Classification

G01L 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

03/07/1989

RPI 959

Carta-patente expirada

#21.1

Patente extinta em 11/07/98 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).

09/25/2001

RPI 1603

Concessão da patente

#16.1

05/30/1995

RPI 1278

14.7

12/20/1994

RPI 1255

15.5

06/28/1994

RPI 1230

Deferimento

#9.1

12/07/1993

RPI 1201

Solicitação de exame técnico

#4.1

08/21/1990

RPI 1029

Publicação do pedido de patente

#3.1