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Official data from INPI

Túnel de avanço sob pressão.

Em AnáliseInvention Patent

Application data

Number

PI7908060

Type

Invention Patent

Filing

12/07/1979

Publication

-

Progress at the INPI

  1. Filing12/07/79
  2. Publication
  3. Examination
  4. Allowance05/03/83
  5. Grant11/29/83
  6. In force12/07/99

The patent was granted on 11/29/1983 and is in force until 12/07/1999. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:12/07/1999

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Latest action published by the INPI: 01/13/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Construtora Civil e Industrial S/A CONCISA

SP, BR

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Inventors

C. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.2

01/13/1987

RPI 847

Anuidade - prazo legal encerrado

#18.2

08/12/1986

RPI 825

Cessão de direito de exploração

#22.1

06/04/1985

RPI 763

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/20/1983

RPI 674

Deferimento

#9.1

05/03/1983

RPI 654

8.1

10/13/1982

RPI 625

Exigência - art. 36 da LPI

#6.1

04/27/1982

RPI 601

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