Official data from INPI

TAMBOR PARA TRANSPORTADOR DE CORREIA

PublicadaInvention Patent

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Application data

Number

PI8804945

Type

Invention Patent

Filing

09/21/1988

Publication

02/08/1989

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Progress at the INPI

Filing09/21/88
Publication02/08/89
Examination01/02/90
Allowance10/01/91
Grant09/29/92
Expired09/02/08

The letters patent expired on 09/02/2008: 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: 02/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fábrica de Aço Paulista S.A

SP, BR

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Inventors

J. N. (pessoa física)

Technical data

IPC Classification

B65G 17/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

02/08/1989

RPI 955

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Carta-patente expirada

#21.1

Patente extinta em 21/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

09/29/1992

RPI 1139

Notificação para pagamento de retribuição

#13.1

02/04/1992

RPI 1105

Deferimento

#9.1

10/01/1991

RPI 1087

Solicitação de exame técnico

#4.1

01/02/1990

RPI 1000

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