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Official data from INPI

APARELHO E PROCESSO PARA DIAGRAFIA DE POÇOS DURANTE A SUA PERFURAÇÃO

ArquivadaInvention PatentPCT · US1983001548

Application data

Number

PI8307546

Type

Invention Patent

Filing

09/29/1983

Publication

08/21/1984

PCT

US1983001548

Progress at the INPI

  1. Filing09/29/83
  2. Publication08/21/84
  3. Abandoned05/05/87
  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.

Talk to a specialist

Latest action published by the INPI: 08/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MacLeod Laboratories, Inc

US

Inventors

N. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

429.823 · 09/30/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

08/02/1988

RPI 928

Exigência - art. 36 da LPI

#6.1

12/15/1987

RPI 895

Solicitação de exame técnico

#4.1

05/05/1987

RPI 863

Notificação de entrada na fase nacional - PCT

#1.3

08/21/1984

RPI 722

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