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Official data from INPI

PORTA CONICAL

ConcedidaInvention Patent

Application data

Number

PI7902501

Type

Invention Patent

Filing

04/24/1979

Publication

-

Progress at the INPI

  1. Filing04/24/79
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MURATA DO BRASIL IND E COMERCI

Inventors

I. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

03/23/1982

RPI 596

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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