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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8101548

Type

Invention Patent

Filing

03/17/1981

Publication

11/03/1982

Progress at the INPI

  1. Filing03/17/81
  2. Publication11/03/82
  3. Examination03/13/84
  4. Allowance05/07/85
  5. Grant04/28/87
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ITW do Brasil Participações Ltda

SP, BR

See this company's full portfolio

Inventors

A. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

201

09/19/1989

RPI 987

Pedido de licença voluntária

#17.1

06/07/1988

RPI 920

20.7

06/07/1988

RPI 920

14.1

01/12/1988

RPI 899

Concessão da patente

#16.1

04/28/1987

RPI 862

110

01/21/1987

RPI 848

Recurso

#12.1

08/20/1985

RPI 774

Deferimento

#9.1

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

11/27/1984

RPI 736

Pedido de certificado de adição de invenção

#5.1

08/07/1984

RPI 720

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

5.2

01/10/1984

RPI 690

Publicação do pedido de patente

#3.1

11/03/1982

RPI 628

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

20.7

07/09/1991

RPI 1075

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