Official data from INPI

HIDRANTE DE COLUNA

Em AnáliseInvention Patent

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Application data

Number

PI8700537

Type

Invention Patent

Filing

02/06/1987

Publication

08/16/1988

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Progress at the INPI

Filing02/06/87
Publication08/16/88
Examination10/18/88
Allowance09/25/90
Grant04/30/91
Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CMC - Válvulas e Conexões Ltda

SP, BR

Inventors

A. G. (pessoa física)

Technical data

IPC Classification

E03B 9/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/18/1988

RPI 939

Publicação do pedido de patente

#3.1

08/16/1988

RPI 930

Pedido de patente depositado

#2.1

06/09/1987

RPI 868

Carta-patente expirada

#21.1

Patente extinta em 06/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/30/1991

RPI 1065

Notificação para pagamento de retribuição

#13.1

01/08/1991

RPI 1049

Deferimento

#9.1

09/25/1990

RPI 1034

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