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Official data from INPI

ELEMENTO DE COBERTURA PARA FECHAMENTO DE ABERTURAS DE CHAPAS METÁLICAS

Em AnáliseInvention Patent

Application data

Number

PI8505758

Type

Invention Patent

Filing

11/14/1985

Publication

08/12/1986

Progress at the INPI

  1. Filing11/14/85
  2. Publication08/12/86
  3. Examination09/27/88
  4. Allowance02/19/91
  5. Grant11/26/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 10/10/1989. 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

H. W. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 42 109.2 · 11/17/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

10/10/1989

RPI 990

Solicitação de exame técnico

#4.1

09/27/1988

RPI 936

Publicação do pedido de patente

#3.1

08/12/1986

RPI 825

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Carta-patente expirada

#21.1

Patente extinta em 14/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

07/09/1991

RPI 1075

Deferimento

#9.1

02/19/1991

RPI 1055

14.1

09/11/1990

RPI 1032

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