Official data from INPI

TRANSPORTADOR DE ARRASTO.

ConcedidaInvention Patent

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Application data

Number

PI8207286

Type

Invention Patent

Filing

12/14/1982

Publication

10/18/1983

View on INPI

Progress at the INPI

Filing12/14/82
Publication10/18/83
Examination01/24/84
Allowance09/17/85
Grant05/27/86
Expired07/01/08

The letters patent expired on 07/01/2008: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F.L Smidth Comercio E Industria Ltd

SP, BR

F.L. Smidth, S.A., Comércio e Indústria.

Inventors

J. D. (pessoa física)

Technical data

IPC Classification

B65G 65/42

Priority claims

P 31 49 650.4 · 12/15/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

01/21/1986

RPI 796

Deferimento

#9.1

09/17/1985

RPI 778

Republicação - classificação IPC

#15.11

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

Solicitação de exame técnico

#4.1

01/24/1984

RPI 692

Publicação do pedido de patente

#3.1

10/18/1983

RPI 678

Pedido de patente depositado

#2.1

02/08/1983

RPI 642

Carta-patente expirada

#21.1

Patente extinta em 14/12/97

07/01/2008

RPI 1956

20.4

04/02/1991

RPI 1061

20.7