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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8100669

Type

Invention Patent

Filing

02/04/1981

Publication

10/05/1982

Progress at the INPI

  1. Filing02/04/81
  2. Publication10/05/82
  3. Examination02/16/83
  4. Allowance08/13/85
  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: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

US

Inventors

C. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/17/1985

RPI 791

Republicação - classificação IPC

#15.11

08/27/1985

RPI 775

Deferimento

#9.1

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

11/20/1984

RPI 735

Solicitação de exame técnico

#4.1

02/16/1983

RPI 643

Publicação do pedido de patente

#3.1

10/05/1982

RPI 624

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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