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Official data from INPI

REVESTIMENTO DE FACE HÍBRIDA PARA ANEL DE PISTÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9601241

Type

Invention Patent

Filing

04/02/1996

Publication

01/06/1998

Progress at the INPI

  1. Filing04/02/96
  2. Publication01/06/98
  3. Examination
  4. Allowance09/03/02
  5. Grant05/13/03
  6. Expired05/03/16

The letters patent expired on 05/03/2016: 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: 05/03/2016. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

I. M. (pessoa física)

US

M. K. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

08/459,072 · 06/02/1995

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/04/2016

05/03/2016

RPI 2365

Concessão da patente

#16.1

05/13/2003

RPI 1688

Deferimento

#9.1

09/03/2002

RPI 1652

Exigência - art. 36 da LPI

#6.1

05/07/2002

RPI 1635

Publicação do pedido de patente

#3.1

01/06/1998

RPI 1411

Pedido de patente depositado

#2.1

06/25/1996

RPI 1334

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