Official data from INPI

ACOPLADOR PARA TUBOS

ConcedidaUtility Model

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Application data

Number

MU6100980

Type

Utility Model

Filing

07/20/1981

Publication

02/02/1982

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Progress at the INPI

Filing07/20/81
Publication02/02/82
Examination03/30/82
Allowance08/28/84
Grant04/30/85
Expired12/07/93

The letters patent expired on 12/07/1993: 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: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TECNO FLEX IND E COMERCIO LTD

Inventors

N. M. (pessoa física)

Technical data

IPC Classification

H02G 15/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

08/28/1984

RPI 723

Solicitação de exame técnico

#4.1

03/30/1982

RPI 597

Publicação antecipada

#3.2

02/02/1982

RPI 589

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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