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Official data from INPI

APERFEIÇOAMENTO EM/E REFERENTE A PLACAS DE APOIO PARA TRILHOS

ConcedidaUtility Model
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Application data

Number

MU5901154

Type

Utility Model

Filing

08/23/1979

Publication

-
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Progress at the INPI

  1. Filing08/23/79
  2. Publication
  3. Examination04/06/82
  4. Allowance04/09/85
  5. Grant10/29/86
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Industrial Arte Técnica S/A

RS, BR

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

E01B 9/40

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1986

RPI 836

110

06/17/1986

RPI 817

Recurso

#12.1

07/23/1985

RPI 770

Recurso

#12.1

07/16/1985

RPI 769

Deferimento

#9.1

04/09/1985

RPI 755

Exigência - art. 36 da LPI

#6.1

09/04/1984

RPI 724

Deferimento (retificação)

#9.1.1

03/20/1984

RPI 700

Deferimento

#9.1

01/03/1984

RPI 689

Exigência - art. 36 da LPI

#6.1

07/05/1983

RPI 663

Pedido de certificado de adição de invenção

#5.1

09/08/1982

RPI 620

Solicitação de exame técnico

#4.1

04/06/1982

RPI 598

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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