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Official data from INPI

SEQUÊNCIA DE ALVEJAMENTO APERFEIÇOADA.

Em AnáliseInvention Patent

Application data

Number

PI8002327

Type

Invention Patent

Filing

04/15/1980

Publication

-

Progress at the INPI

  1. Filing04/15/80
  2. Publication
  3. Examination
  4. Allowance07/10/84
  5. Grant12/26/84
  6. Expired06/06/95

The letters patent expired on 06/06/1995: 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: 06/07/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Erco Industries Limited

Inventors

R. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

30.557 · 04/16/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

06/07/1988

RPI 920

20.3

11/10/1987

RPI 890

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

11/29/1983

RPI 684

Carta-patente expirada

#21.1

06/06/1995

RPI 1279

Pedido de licença compulsória

#20.1

03/30/1993

RPI 1165

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