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Official data from INPI

APERFEIÇOAMENTOS EM TANQUE CRITOGÊNIO

ConcedidaInvention Patent

Application data

Number

PI8304769

Type

Invention Patent

Filing

09/01/1983

Publication

04/09/1985

Progress at the INPI

  1. Filing09/01/83
  2. Publication04/09/85
  3. Examination07/16/85
  4. Allowance07/08/86
  5. Grant03/31/87
  6. Terminated08/20/91

The patent was granted on 03/31/1987 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: 03/31/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mangels Industrial S/A

SP, BR

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Inventors

B. E. (pessoa física)

B. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/31/1987

RPI 858

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Solicitação de exame técnico

#4.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

04/09/1985

RPI 755

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

Anuidade - prazo legal encerrado

#18.2

08/20/1991

RPI 1081

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