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Official data from INPI

AQUECEDOR ELETRO-AUTOMATICO CENTRAL

Arquivada/ExtintaUtility Model

Application data

Number

MU5701634

Type

Utility Model

Filing

12/29/1977

Publication

-

Progress at the INPI

  1. Filing12/29/77
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant11/29/83
  6. Expired08/16/88

The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CARDAL ELETROMETALURG LTD

Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

08/16/1988

RPI 930

201

10/02/1984

RPI 728

Pedido de licença voluntária

#17.1

05/22/1984

RPI 709

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

Exigência - art. 36 da LPI

#6.1

03/02/1982

RPI 593

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era F24H 1/04.

03/27/2018

RPI 2464

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