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Official data from INPI

PROCESSO PARA MEDIR VAZAMENTOS

Em AnáliseInvention Patent

Application data

Number

PI8008868

Type

Invention Patent

Filing

10/12/1979

Publication

-

Progress at the INPI

  1. Filing10/12/79
  2. Publication
  3. Examination06/28/83
  4. Allowance01/15/85
  5. Grant08/27/85
  6. Terminated06/21/88

The patent was granted on 08/27/1985 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SUN OIL CO PENNSYLVANIA [US]

Inventors

H. [. (pessoa física)

S. [. (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

16.3

10/29/1985

RPI 784

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

08/14/1984

RPI 721

14.4

04/10/1984

RPI 703

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

06/28/1983

RPI 662

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