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Official data from INPI

PROCESSO E DISPOSITIVO PARA REDUCAO DA PERDA DE CALOR RESULTANTE EM PORTA-RECIPIENTES CIRCULANTES

Em AnáliseInvention Patent

Application data

Number

PI8100612

Type

Invention Patent

Filing

02/01/1980

Publication

-

Progress at the INPI

  1. Filing02/01/80
  2. Publication
  3. Examination08/30/83
  4. Allowance08/21/84
  5. Grant04/30/85
  6. Terminated06/21/88

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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOLSTEIN & KAPPERT GMBH

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Inventors

R. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Solicitação de exame técnico

#4.1

08/30/1983

RPI 671

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