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Official data from INPI

FLUIDO PARA IMPREGNACAO DE CABOS DE FORCA,PARTICULARMENTE DE CABOS A SEREM INSTALADOS SOB AGUA,E OS CABOS ASSIM OBTIDOS

Concessão AnuladaInvention Patent

Application data

Number

PI7804740

Type

Invention Patent

Filing

07/29/1977

Publication

-

Progress at the INPI

  1. Filing07/29/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant12/27/83
  6. Expired11/30/93

The letters patent expired on 11/30/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/20/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PIRELLI

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Inventors

V. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

03/20/1984

RPI 700

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

14.1

03/22/1983

RPI 648

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

20.4

10/20/1992

RPI 1142

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