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Official data from INPI

ESTRUTURA APERFEIÇOADA DE MANCAL

Em AnáliseInvention Patent

Application data

Number

PI8607151

Type

Invention Patent

Filing

10/27/1986

Publication

06/14/1988

Progress at the INPI

  1. Filing10/27/86
  2. Publication06/14/88
  3. Examination01/09/90
  4. Allowance07/02/91
  5. Grant02/18/92
  6. Terminated10/03/95

The patent was granted on 02/18/1992 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Smith International, Inc.

US

See this company's full portfolio

Inventors

D. H. (pessoa física)

US

J. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

864.788 · 05/19/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

06/14/1988

RPI 921

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

02/18/1992

RPI 1107

Notificação para pagamento de retribuição

#13.1

10/29/1991

RPI 1091

Deferimento

#9.1

07/02/1991

RPI 1074

Exigência - art. 36 da LPI

#6.1

01/08/1991

RPI 1049

Solicitação de exame técnico

#4.1

01/09/1990

RPI 1001

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