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Official data from INPI

PRENSA DE PARAFUSO

Em AnáliseInvention Patent

Application data

Number

PI8603707

Type

Invention Patent

Filing

08/05/1986

Publication

03/10/1987

Progress at the INPI

  1. Filing08/05/86
  2. Publication03/10/87
  3. Examination05/16/89
  4. Allowance07/24/90
  5. Grant02/13/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. T. (pessoa física)

JP

Inventors

H. H. (pessoa física)

JP

K. U. (pessoa física)

JP

S. I. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

171.092/1985 · 08/05/1985

JP

171.093/1985 · 08/05/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/16/1989

RPI 969

Publicação do pedido de patente

#3.1

03/10/1987

RPI 855

Pedido de patente depositado

#2.1

02/24/1987

RPI 853

Carta-patente expirada

#21.1

Patente extinta em 05/08/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

02/13/1991

RPI 1054

Notificação para pagamento de retribuição

#13.1

11/06/1990

RPI 1040

Deferimento

#9.1

07/24/1990

RPI 1025

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