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Official data from INPI

PROCESSO PARA REDUZIR O COEFICIENTE DE FRICÇÃO ESTÁTICA SOBRE A SUPERFÍCIE EXTERNA DE UMA LATA DE METAL E PERMITIR A SECAGEM DE TAL LATA A UMATEMPERATURA MAIS BAIXA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004082

Type

Invention Patent

Filing

08/17/1990

Publication

09/03/1991

Progress at the INPI

  1. Filing08/17/90
  2. Publication09/03/91
  3. Examination11/23/93
  4. Allowance03/24/98
  5. Grant11/24/98
  6. Expired01/29/13

The letters patent expired on 01/29/2013: 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: 01/29/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. C. (pessoa física)

US

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Inventors

S. A. (pessoa física)

US

Technical data

Priority claims

US

07/395,620 · 08/18/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 17/08/2010

01/29/2013

RPI 2195

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

03/24/1998

RPI 1422

Exigência - art. 36 da LPI

#6.1

02/12/1997

RPI 1367

Solicitação de exame técnico

#4.1

11/23/1993

RPI 1199

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

02/19/1991

RPI 1055

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