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Official data from INPI

VAGAO DE ESTRADA DE FERRO MODULAR

Em AnáliseInvention Patent

Application data

Number

PI7905389

Type

Invention Patent

Filing

08/22/1978

Publication

-

Progress at the INPI

  1. Filing08/22/78
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 10/05/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BUDD CO

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

Pedido de licença compulsória

#20.1

05/01/1990

RPI 1016

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