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Official data from INPI

SISTEMA DE SEGURANCA PARA PULVERIZADORES DE CARVAO

ConcedidaInvention Patent

Application data

Number

PI8403542

Type

Invention Patent

Filing

08/01/1983

Publication

06/25/1985

Progress at the INPI

  1. Filing08/01/83
  2. Publication06/25/85
  3. Examination03/11/86
  4. Allowance06/28/88
  5. Grant12/27/88
  6. Terminated06/20/95

The patent was granted on 12/27/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BABCOCK & WILCOX CO [US]

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Inventors

C. M. (pessoa física)

P. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Deferimento

#9.1

06/28/1988

RPI 923

Exigência - art. 36 da LPI

#6.1

12/15/1987

RPI 895

4.1.2

04/29/1986

RPI 810

Solicitação de exame técnico

#4.1

03/11/1986

RPI 803

Solicitação de exame não realizada

#4.2

10/29/1985

RPI 784

Publicação do pedido de patente

#3.1

06/25/1985

RPI 766

Pedido de patente depositado

#2.1

09/25/1984

RPI 727

Anuidade - prazo legal encerrado

#18.2

06/20/1995

RPI 1281

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