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Official data from INPI

FIBRA OU FILAMENTO E PROCESSO PARA PREPARAR FIBRA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100461

Type

Invention Patent

Filing

02/05/1991

Publication

10/29/1991

Progress at the INPI

  1. Filing02/05/91
  2. Publication10/29/91
  3. Examination02/01/94
  4. Allowance04/27/99
  5. Grant11/03/99
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. I. (pessoa física)

US

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Inventors

R. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

474.897 · 02/05/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 05/02/2011

05/28/2013

RPI 2212

Concessão da patente

#16.1

11/03/1999

RPI 1504

Deferimento

#9.1

04/27/1999

RPI 1477

Exigência - art. 36 da LPI

#6.1

10/27/1998

RPI 1451

Solicitação de exame técnico

#4.1

02/01/1994

RPI 1209

Publicação do pedido de patente

#3.1

10/29/1991

RPI 1091

Pedido de patente depositado

#2.1

08/06/1991

RPI 1079

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