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Official data from INPI

FERRAMENTA DE ESCAVACAO

ConcedidaInvention Patent
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Application data

Number

PI8108713

Type

Invention Patent

Filing

03/26/1980

Publication

06/01/1982
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Progress at the INPI

  1. Filing03/26/80
  2. Publication06/01/82
  3. Examination09/13/83
  4. Allowance12/16/86
  5. Grant07/28/87
  6. Terminated11/08/94

The patent was granted on 07/28/1987 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SANDVIK AB

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Inventors

W. H. (pessoa física)

Technical data

IPC Classification

E21B 10/00E21B 10/66

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

12/31/1985

RPI 793

Republicação - classificação IPC

#15.11

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

01/02/1985

RPI 741

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Notificação de entrada na fase nacional - PCT

#1.3

06/01/1982

RPI 606

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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