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Official data from INPI

Conjunto móvel e processo para o saneamento contínuo do fundamento de vias férreas.

ConcedidaInvention Patent

Application data

Number

PI8205552

Type

Invention Patent

Filing

09/21/1982

Publication

08/30/1983

Progress at the INPI

  1. Filing09/21/82
  2. Publication08/30/83
  3. Examination12/20/83
  4. Allowance11/12/85
  5. Grant06/24/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Franz Plasser Bahnbaumaschinen-Industrie-Gesellschaft m.b.h.

AT

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Inventors

B. M. (pessoa física)

T. J. (pessoa física)

Technical data

IPC Classification

Priority claims

AT

A 5525/81 · 12/22/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/15/1986

RPI 808

Deferimento

#9.1

11/12/1985

RPI 786

6.2

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

12/20/1983

RPI 687

Publicação do pedido de patente

#3.1

08/30/1983

RPI 671

Pedido de patente depositado

#2.1

11/09/1982

RPI 629

Carta-patente expirada

#21.1

Patente extinta em 21/09/97

07/01/2008

RPI 1956

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