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Official data from INPI

DISPOSITIVO PARA CONTROLE DE CENTRALIZACAO DA CORREIA EM TRANSPROTADOR DE ESTEIRA

ConcedidaInvention Patent
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Application data

Number

PI8301414

Type

Invention Patent

Filing

03/21/1983

Publication

05/31/1983
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Progress at the INPI

  1. Filing03/21/83
  2. Publication05/31/83
  3. Examination09/20/83
  4. Allowance07/02/85
  5. Grant08/25/87
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. P. (pessoa física)

Inventors

D. [. (pessoa física)

Technical data

IPC Classification

B65G 35/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

14.7

12/30/1986

RPI 845

14.1

07/29/1986

RPI 823

Notificação para pagamento de retribuição

#13.1

10/22/1985

RPI 783

Deferimento

#9.1

07/02/1985

RPI 767

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Publicação antecipada

#3.2

05/31/1983

RPI 658

Pedido de patente depositado

#2.1

05/03/1983

RPI 654

Carta-patente expirada

#21.1

Patente extinta em 21/03/98

08/19/2008

RPI 1963

20.4

11/03/1992

RPI 1144

Related

From the same holder

MAO MECANICA

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