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Official data from INPI

PROCESSO DE PERFURAÇÃO DE FUROS INTERPENETRANTES E GUIA DE FURO DE PERFURAÇÃO.

ArquivadaInvention Patent
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Application data

Number

PI8104631

Type

Invention Patent

Filing

07/17/1981

Publication

04/06/1982
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Progress at the INPI

  1. Filing07/17/81
  2. Publication04/06/82
  3. Abandoned07/05/83
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Boart International Limited

ZA

Inventors

H. J. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

B23B 49/00

Priority claims

ZA

80/4310 · 07/17/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

02/04/1986

RPI 798

Exigência - art. 36 da LPI

#6.1

07/30/1985

RPI 771

Exigência - art. 36 da LPI

#6.1

12/11/1984

RPI 738

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

04/06/1982

RPI 598

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era E21C 9/00.

03/27/2018

RPI 2464

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