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Official data from INPI

CALDEIRA ELETRICA POR ELETRODO A JATO DE AGUA

ConcedidaInvention Patent
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Application data

Number

PI8401574

Type

Invention Patent

Filing

04/04/1984

Publication

11/12/1985
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Progress at the INPI

  1. Filing04/04/84
  2. Publication11/12/85
  3. Examination08/12/86
  4. Allowance08/11/87
  5. Grant12/29/87
  6. Terminated06/06/95

The patent was granted on 12/29/1987 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HYDRO STEAM EQUIPAMENTOS IND L [BR]

Inventors

A. D. (pessoa física)

B. K. (pessoa física)

Technical data

IPC Classification

F22B 1/30

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Deferimento

#9.1

08/11/1987

RPI 877

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

11/12/1985

RPI 786

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Anuidade - prazo legal encerrado

#18.2

06/06/1995

RPI 1279

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