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Official data from INPI

TAMBOR SECADOR CILINDRICO OCO E PROCESSO DE AUMENTO DA TRANSFERENCIA DE CALOR NO MESMO

Em AnáliseInvention Patent

Application data

Number

PI7807533

Type

Invention Patent

Filing

03/03/1978

Publication

-

Progress at the INPI

  1. Filing03/03/78
  2. Publication
  3. Examination06/15/82
  4. Allowance08/23/83
  5. Grant03/27/84
  6. Terminated05/17/88

The patent was granted on 03/27/1984 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BELOIT CORP

See this company's full portfolio

Inventors

C. J. (pessoa física)

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/13/1983

RPI 686

Deferimento

#9.1

08/23/1983

RPI 670

Exigência - art. 36 da LPI

#6.1

01/18/1983

RPI 639

Solicitação de exame técnico

#4.1

06/15/1982

RPI 608

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