Official data from INPI

ESQUADRIA PARA PORTAS DE DOBRADICAS USADAS NA CONSTRUCAO CIVIL,E BATENTE CORRESPONDENTE

Em AnáliseInvention Patent

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Application data

Number

PI7703953

Type

Invention Patent

Filing

06/16/1977

Publication

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Progress at the INPI

Filing06/16/77
Publication
Examination
Allowance11/03/81
Grant
Expired07/06/93

The letters patent expired on 07/06/1993: 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: 03/15/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. F. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

03/15/1988

RPI 908

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Notificação para pagamento de retribuição

#13.1

03/02/1982

RPI 593

15.0

11/24/1981

RPI 579

Deferimento

#9.1

11/03/1981

RPI 576

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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