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Official data from INPI

BATERIA DE FORNOS DE CÂMARA DE COQUEIFICAÇÃO REGENERATIVAMENTE AQUECÍVEIS, INDIRETAMENTE OPCIONALMENTE COM GÁS FRACO OU GÁS FORTE.

ConcedidaInvention Patent

Application data

Number

PI8102973

Type

Invention Patent

Filing

05/13/1981

Publication

02/02/1982

Progress at the INPI

  1. Filing05/13/81
  2. Publication02/02/82
  3. Examination04/05/83
  4. Allowance07/10/84
  5. Grant02/26/85
  6. Terminated08/30/94

The patent was granted on 02/26/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dr. C. Otto & Comp. Gmbh

DE

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Inventors

H. G. (pessoa física)

K. H. (pessoa física)

W. F. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 30 18 361.0 · 05/14/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Solicitação de exame técnico

#4.1

04/05/1983

RPI 650

Publicação do pedido de patente

#3.1

02/02/1982

RPI 589

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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