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Official data from INPI

MÉTODO DE MEDIÇÃO DE CARGA EM TRILHOS FERROVIÁRIOS.

Em AnáliseInvention Patent

Application data

Number

PI8501681

Type

Invention Patent

Filing

04/10/1985

Publication

11/18/1986

Progress at the INPI

  1. Filing04/10/85
  2. Publication11/18/86
  3. Examination01/03/89
  4. Allowance03/13/90
  5. Grant10/30/90
  6. Terminated07/25/95

The patent was granted on 10/30/1990 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: 01/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto de Pesquisas Tecnológicas de São Paulo S/A - IPT

SP, BR

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Inventors

F. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/03/1989

RPI 950

15.5

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

11/18/1986

RPI 839

Pedido de patente depositado

#2.1

06/25/1985

RPI 766

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Concessão da patente

#16.1

10/30/1990

RPI 1039

Notificação para pagamento de retribuição

#13.1

07/24/1990

RPI 1025

Deferimento

#9.1

03/13/1990

RPI 1009

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