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Official data from INPI

SISTEMA E PROCESSO PARA CONTINUAMENTE EVITAR FORMACAO DE PONTES DE FILAMENTOS ENTRE BOCAIS DE EXTRACAO ADJACENTES

Em AnáliseInvention Patent
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Application data

Number

PI8207951

Type

Invention Patent

Filing

11/02/1981

Publication

10/04/1983
View on INPI

Progress at the INPI

Technical opinion to answer
  1. Filing11/02/81
  2. Publication10/04/83
  3. Examination03/19/85
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IMANTS REBA [US]

WOLTHAUSEN EDWARD C [US]

Inventors

R. [. (pessoa física)

W. [. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

05/31/1988

RPI 919

Conhecimento de parecer técnico

#7.1

12/17/1985

RPI 791

Solicitação de exame técnico

#4.1

03/19/1985

RPI 752

Notificação de entrada na fase nacional - PCT

#1.3

10/04/1983

RPI 676

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