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Official data from INPI

ESTRADO AMORTECEDOR PARA VAGÃO FERROVIÁRIO, VAGÃO FERROVIÁRIO E PROCESSO PARA A ABSORÇÃO DAS FORÇAS DE IMPACTO ATUANTES SOBRE O ESTRADO DE UM VAGÃO FERROVIÁRIO.

ArquivadaInvention Patent

Application data

Number

PI8104003

Type

Invention Patent

Filing

06/25/1981

Publication

03/09/1982

Progress at the INPI

  1. Filing06/25/81
  2. Publication03/09/82
  3. Abandoned08/02/83
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dresser Industries, Inc

US

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Inventors

D. W. (pessoa física)

Technical data

Priority claims

US

166.012 · 07/07/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

07/31/1984

RPI 719

Exigência - art. 36 da LPI

#6.1

01/03/1984

RPI 689

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Publicação do pedido de patente

#3.1

03/09/1982

RPI 594

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