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Official data from INPI

TANQUE SOLAR USINA DE FORCA E PROCESSO PARA MANUTENCAO DE UM "HALOCLINE"

ConcedidaInvention Patent

Application data

Number

PI8105428

Type

Invention Patent

Filing

08/26/1981

Publication

04/05/1983

Progress at the INPI

  1. Filing08/26/81
  2. Publication04/05/83
  3. Examination06/04/85
  4. Allowance05/27/86
  5. Grant12/30/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SOLMAT SYST [IL]

Inventors

A. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

09/23/1986

RPI 831

Deferimento

#9.1

05/27/1986

RPI 814

Solicitação de exame técnico

#4.1

06/04/1985

RPI 763

Publicação do pedido de patente

#3.1

04/05/1983

RPI 650

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: F24J 3/02; F24D 7/00.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 26/08/96

08/19/2008

RPI 1963

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