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Official data from INPI

DISPOSITIVO DE SORTEIO PARA REVISTA DE FUNCIONARIOS

Em AnáliseInvention Patent

Application data

Number

PI7902511

Type

Invention Patent

Filing

04/23/1979

Publication

-

Progress at the INPI

  1. Filing04/23/79
  2. Publication
  3. Examination
  4. Allowance08/30/83
  5. Grant10/30/84
  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: 08/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WOLPAC IND METALURGICA LTD

Inventors

W. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

08/23/1988

RPI 931

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

06/12/1984

RPI 712

110

04/17/1984

RPI 704

Recurso

#12.1

12/20/1983

RPI 687

Deferimento

#9.1

08/30/1983

RPI 671

Exigência - art. 36 da LPI

#6.1

04/12/1983

RPI 651

Exigência - art. 36 da LPI

#6.1

08/24/1982

RPI 618

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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