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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8206891

Type

Invention Patent

Filing

11/18/1982

Publication

03/29/1983

Progress at the INPI

  1. Filing11/18/82
  2. Publication03/29/83
  3. Examination08/09/83
  4. Allowance07/30/85
  5. Grant03/31/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TNT Brasil S.A

RS, BR

Inventors

E. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.5

04/12/1988

RPI 912

Concessão da patente

#16.1

03/31/1987

RPI 858

14.4

08/05/1986

RPI 824

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Deferimento

#9.1

07/30/1985

RPI 771

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

Publicação antecipada

#3.2

03/29/1983

RPI 649

Pedido de patente depositado

#2.1

01/18/1983

RPI 639

Carta-patente expirada

#21.1

Patente extinta em 18/11/97

07/01/2008

RPI 1956

18.8

05/09/1995

RPI 1275

Anuidade - prazo legal encerrado

#18.2

04/11/1995

RPI 1271

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