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Official data from INPI

DISPOSITIVO DE EXIBICAO DE DESCARGA GASOSA

ConcedidaInvention Patent

Application data

Number

PI8004296

Type

Invention Patent

Filing

07/13/1979

Publication

-

Progress at the INPI

  1. Filing07/13/79
  2. Publication
  3. Examination02/22/83
  4. Allowance02/14/84
  5. Grant08/28/84
  6. Terminated07/26/94

The patent was granted on 08/28/1984 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: 09/18/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM

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Inventors

P. A. (pessoa física)

S. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

09/18/1984

RPI 726

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Republicação - classificação IPC

#15.11

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

09/13/1983

RPI 673

Solicitação de exame técnico

#4.1

02/22/1983

RPI 644

Anuidade - prazo legal encerrado

#18.2

07/26/1994

RPI 1234

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