Official data from INPI

SISTEMA PARA O FLUXO DE UM LIQUIDO DISPOSTO HORIZONTALMENTE

ConcedidaInvention Patent

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Application data

Number

PI8103236

Type

Invention Patent

Filing

05/25/1981

Publication

01/04/1983

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Progress at the INPI

Filing05/25/81
Publication01/04/83
Examination03/05/85
Allowance07/08/86
Grant02/03/87
Terminated08/30/94

The patent was granted on 02/03/1987 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: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RONGVED PAUL INGOLF [US]

Inventors

R. [. (pessoa física)

Technical data

IPC Classification

C02F 3/16

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/03/1987

RPI 850

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

09/10/1985

RPI 777

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação do pedido de patente

#3.1

01/04/1983

RPI 637

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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