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Official data from INPI

PROCESSO E APARELHO PARA FABRICACAO DE UM RALO COM BASE DE VARETAS,E ROLO COM BASE DE VARETAS

ArquivadaInvention Patent
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Application data

Number

PI7905340

Type

Invention Patent

Filing

02/12/1979

Publication

-
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Progress at the INPI

  1. Filing02/12/79
  2. Publication
  3. Examination08/16/83
  4. Allowance07/09/85
  5. Abandoned
  6. In force

The application was allowed on 07/09/1985 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

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Latest action published by the INPI: 07/08/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOUSTON WELL SCREEN CO

HOUSTON WELL SCREEN CO [US]

Inventors

W. H. (pessoa física)

Technical data

IPC Classification

B21F 15/08B21F 27/10

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

07/08/1986

RPI 820

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Republicação - classificação IPC

#15.11

07/02/1985

RPI 767

Exigência - art. 36 da LPI

#6.1

01/29/1985

RPI 745

Exigência - art. 36 da LPI

#6.1

09/11/1984

RPI 725

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

08/16/1983

RPI 669

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