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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8104880

Type

Invention Patent

Filing

07/28/1981

Publication

04/13/1982

Progress at the INPI

  1. Filing07/28/81
  2. Publication04/13/82
  3. Examination06/29/82
  4. Allowance05/08/84
  5. Grant11/27/84
  6. Expired11/19/96

The letters patent expired on 11/19/1996: 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: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Century II, Inc.

US

Inventors

R. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/08/1984

RPI 707

Exigência - art. 36 da LPI

#6.1

12/13/1983

RPI 686

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Publicação do pedido de patente

#3.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

11/19/1996

RPI 1355

Pedido de licença compulsória

#20.1

08/06/1991

RPI 1079

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