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Official data from INPI

Processo para controlar a tensão em uma fibra em movimento

Arquivada/ExtintaInvention Patent

Application data

Number

PI9104295

Type

Invention Patent

Filing

10/04/1991

Publication

06/02/1992

Progress at the INPI

  1. Filing10/04/91
  2. Publication06/02/92
  3. Examination07/12/94
  4. Allowance08/19/97
  5. Grant07/28/98
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. I. (pessoa física)

US

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Inventors

G. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

593,204 · 10/05/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/10/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

07/28/1998

RPI 1440

Republicação - classificação IPC

#15.11

08/19/1997

RPI 1394

Deferimento

#9.1

08/19/1997

RPI 1394

Solicitação de exame técnico

#4.1

07/12/1994

RPI 1232

Publicação do pedido de patente

#3.1

06/02/1992

RPI 1122

Pedido de patente depositado

#2.1

11/12/1991

RPI 1093

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