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Official data from INPI

ESTRUTURA DE MANCAL E PROCESSO DE SUA FABRICAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8607152

Type

Invention Patent

Filing

10/27/1986

Publication

06/14/1988

Progress at the INPI

  1. Filing10/27/86
  2. Publication06/14/88
  3. Examination11/28/89
  4. Allowance01/08/91
  5. Grant08/27/91
  6. Terminated10/03/95

The patent was granted on 08/27/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Smith International, Inc.

US

See this company's full portfolio

Inventors

J. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

865.159 · 05/20/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/28/1989

RPI 997

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

08/27/1991

RPI 1082

Notificação para pagamento de retribuição

#13.1

04/23/1991

RPI 1064

Deferimento

#9.1

01/08/1991

RPI 1049

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