Official data from INPI

MAQUINA PARA FABRICACAO DE PLACAS DE PETRI,PARTINDO DO VIDRO PLANO

Em AnáliseInvention Patent

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Application data

Number

PI7705146

Type

Invention Patent

Filing

08/02/1977

Publication

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Progress at the INPI

Filing08/02/77
Publication
Examination
Allowance07/27/82
Grant02/22/83
Expired07/13/93

The letters patent expired on 07/13/1993: 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: 02/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VIDROG IND COM DE VIDROS LTD

Inventors

G. O. (pessoa física)

Technical data

IPC Classification

C03B 29/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.5

02/08/1989

RPI 955

18.3

11/08/1988

RPI 942

18.1

05/17/1988

RPI 917

320

05/07/1985

RPI 759

300

01/15/1985

RPI 743

201

10/02/1984

RPI 728

Pedido de licença voluntária

#17.1

03/27/1984

RPI 701

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

12/14/1982

RPI 634

Deferimento

#9.1

07/27/1982

RPI 614

Exigência - art. 36 da LPI

#6.1

01/19/1982

RPI 587

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

114

04/27/1993

RPI 1169

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