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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8104562

Type

Invention Patent

Filing

07/16/1981

Publication

02/22/1983

Progress at the INPI

  1. Filing07/16/81
  2. Publication02/22/83
  3. Examination09/13/83
  4. Allowance08/07/84
  5. Grant03/26/85
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. T. (pessoa física)

SP, BR

Inventors

T. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

201

05/27/1986

RPI 814

Pedido de licença voluntária

#17.1

12/10/1985

RPI 790

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Publicação do pedido de patente

#3.1

02/22/1983

RPI 644

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

18.8

11/15/1994

RPI 1250

Anuidade - prazo legal encerrado

#18.2

10/04/1994

RPI 1244

Cessão de direito de exploração

#22.1

03/20/1990

RPI 1010

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