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Official data from INPI

METODO PARA MANTER O FLUXO LAMINAR DE UM LIQUIDO AO LONGO DA SUPERFICIE EXTERNA DE UM CORPO EM MOVIMENTO RELATIVO ATRAVES DO LIQUIDO

Em AnáliseInvention Patent

Application data

Number

PI8307694

Type

Invention Patent

Filing

02/28/1983

Publication

03/12/1985

Progress at the INPI

  1. Filing02/28/83
  2. Publication03/12/85
  3. Examination06/25/85
  4. Allowance10/13/87
  5. Grant06/28/88
  6. Terminated10/10/89

The patent was granted on 06/28/1988 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GOULD INC [US]

Inventors

T. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/10/1989

RPI 990

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Exigência - art. 36 da LPI

#6.1

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

06/25/1985

RPI 766

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1985

RPI 751

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