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Official data from INPI

ENGATE DE VAGÃO FERROVIÁRIO E PROCESSO DE ATUAR A TRAVA DE UM ENGATE DE VAGÃO FERROVIÁRIO ROTATIVO.

Em AnáliseInvention Patent

Application data

Number

PI8206746

Type

Invention Patent

Filing

11/22/1982

Publication

10/04/1983

Progress at the INPI

  1. Filing11/22/82
  2. Publication10/04/83
  3. Examination12/20/83
  4. Allowance10/01/85
  5. Grant05/27/86
  6. Terminated01/03/95

The patent was granted on 05/27/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dresser Industries, Inc

US

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Inventors

A. E. (pessoa física)

B. C. (pessoa física)

C. W. (pessoa física)

K. F. (pessoa física)

Pessoa física

Technical data

IPC Classification

Priority claims

US

323.529 · 11/23/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

12/02/1986

RPI 841

Concessão da patente

#16.1

05/27/1986

RPI 814

Deferimento

#9.1

10/01/1985

RPI 780

Exigência - art. 36 da LPI

#6.1

12/18/1984

RPI 739

Solicitação de exame técnico

#4.1

12/20/1983

RPI 687

Publicação do pedido de patente

#3.1

10/04/1983

RPI 676

Pedido de patente depositado

#2.1

01/11/1983

RPI 638

Anuidade - prazo legal encerrado

#18.2

01/03/1995

RPI 1257

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