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Official data from INPI

COMPOSIÇÃO DIELÉTRICA E FIO OU CABO ELÉTRICO

ConcedidaInvention Patent

Application data

Number

PI7808479

Type

Invention Patent

Filing

12/26/1978

Publication

-

Progress at the INPI

  1. Filing12/26/78
  2. Publication
  3. Examination
  4. Allowance07/14/87
  5. Grant12/29/87
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

A. J. (pessoa física)

US

R. T. (pessoa física)

US

Technical data

Priority claims

US

864.752 · 12/27/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

10/19/1982

RPI 626

6.2

10/27/1981

RPI 575

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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