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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8007949

Type

Invention Patent

Filing

12/04/1980

Publication

-

Progress at the INPI

  1. Filing12/04/80
  2. Publication
  3. Examination08/09/83
  4. Allowance08/06/85
  5. Grant03/25/86
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 01/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STC PLC.

GB

Inventors

W. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

01/19/1988

RPI 900

Anuidade - prazo legal encerrado

#18.2

08/25/1987

RPI 879

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/10/1985

RPI 790

Deferimento

#9.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

11/06/1984

RPI 733

Republicação - classificação IPC

#15.11

10/02/1984

RPI 728

Exigência - art. 36 da LPI

#6.1

05/08/1984

RPI 707

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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