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Official data from INPI

CALDEIRA E PROCESSO DE AQUECIMENTO DE LIQUIDO

Em AnáliseInvention Patent
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Application data

Number

PI8107082

Type

Invention Patent

Filing

03/04/1981

Publication

01/05/1982
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Progress at the INPI

  1. Filing03/04/81
  2. Publication01/05/82
  3. Examination10/04/83
  4. Allowance10/09/84
  5. Grant04/30/85
  6. Terminated05/24/88

The patent was granted on 04/30/1985 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STONE PLATT FLUIDFIRE LTD [GB]

Inventors

B. R. (pessoa física)

V. M. (pessoa física)

Technical data

IPC Classification

F22B 31/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

14.1

10/08/1985

RPI 781

Concessão da patente

#16.1

04/30/1985

RPI 758

Deferimento

#9.1

10/09/1984

RPI 729

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

10/04/1983

RPI 676

Notificação de entrada na fase nacional - PCT

#1.3

01/05/1982

RPI 585

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: F22B 35/02; F23C 11/02.

03/27/2018

RPI 2464

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