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Official data from INPI

APERFEIÇOAMENTOS EM COBERTURAS PARA CARGAS TEMENTES À UMIDADE, EM TRANSPORTE FERROVIÁRIO

ConcedidaInvention Patent

Application data

Number

PI8205866

Type

Invention Patent

Filing

10/07/1982

Publication

05/15/1984

Progress at the INPI

  1. Filing10/07/82
  2. Publication05/15/84
  3. Examination11/12/85
  4. Allowance07/14/87
  5. Grant03/29/88
  6. Terminated01/03/95

The patent was granted on 03/29/1988 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderurgica Paulista - COSIPA

SP, BR

See this company's full portfolio

Inventors

S. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

Deferimento

#9.1

07/14/1987

RPI 873

4.1.2

06/03/1986

RPI 815

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação do pedido de patente

#3.1

05/15/1984

RPI 708

Pedido de patente depositado

#2.1

11/30/1982

RPI 632

Anuidade - prazo legal encerrado

#18.2

01/03/1995

RPI 1257

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