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Official data from INPI

NÚCLEO DE JACARÉ PARA APARELHO DE MUDANÇA DE VIA OU CRUZAMENTO DE LINHAS FÉRREAS.

ConcedidaInvention Patent

Application data

Number

PI8003004

Type

Invention Patent

Filing

05/15/1980

Publication

01/12/1982

Progress at the INPI

  1. Filing05/15/80
  2. Publication01/12/82
  3. Examination04/06/82
  4. Allowance05/22/84
  5. Grant12/26/84
  6. Expired06/13/95

The letters patent expired on 06/13/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cobrasma S/A Companhia do Metropolitano de São Paulo Metrô

Inventors

M. M. (pessoa física)

S. I. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Conhecimento de parecer técnico

#7.1

11/08/1983

RPI 681

Solicitação de exame técnico

#4.1

04/06/1982

RPI 598

Publicação do pedido de patente

#3.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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