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Official data from INPI

PROCESSO E APARELHO PARA FORMAR ARTIGO A PARTIR DE UM PRECURSOR DO ARTIGO

Em AnáliseInvention Patent

Application data

Number

PI8606421

Type

Invention Patent

Filing

12/23/1986

Publication

10/20/1987

Progress at the INPI

  1. Filing12/23/86
  2. Publication10/20/87
  3. Examination03/28/89
  4. Allowance08/02/94
  5. Grant05/30/95
  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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

R. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

829,048 · 02/13/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/28/1989

RPI 962

Publicação do pedido de patente

#3.1

10/20/1987

RPI 887

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Carta-patente expirada

#21.1

Patente extinta em 23/12/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

05/30/1995

RPI 1278

Notificação para pagamento de retribuição

#13.1

11/29/1994

RPI 1252

Deferimento

#9.1

08/02/1994

RPI 1235

Exigência - art. 36 da LPI

#6.1

11/16/1993

RPI 1198

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