Official data from INPI

INSTALAÇÃO DE FORNO PARA QUEIMA DE MATÉRIA-PRIMA PULVERULENTA OU GRANULAR.

ConcedidaInvention Patent

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Application data

Number

PI8106019

Type

Invention Patent

Filing

09/21/1981

Publication

06/08/1982

View on INPI

Progress at the INPI

Filing09/21/81
Publication06/08/82
Examination03/13/84
Allowance05/07/85
Grant11/26/85
In force09/21/01

The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.

Protection valid until:09/21/2001

Latest action published by the INPI: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F.L. Smidth Comercio e Industria Ltda

SP, BR

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Inventors

T. D. (pessoa física)

Technical data

IPC Classification

F27D 3/16

Priority claims

8030508 · 09/22/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

08/27/1985

RPI 775

Deferimento

#9.1

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

10/09/1984

RPI 729

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Publicação do pedido de patente

#3.1

06/08/1982

RPI 607

Pedido de patente depositado

#2.1

11/03/1981

RPI 576

20.4

04/02/1991

RPI 1061

20.7