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Official data from INPI

PROCESSO PARA ELETROGALVANIZAÇÃO DE LÂMINAS DE AÇO COM REVESTIMENTOS DE ZINCO OU LIGAS DE ZINCO

Arquivada/ExtintaInvention PatentPCT · US1989000054

Application data

Number

PI8907191

Type

Invention Patent

Filing

01/06/1989

Publication

03/05/1991

PCT

US1989000054

Progress at the INPI

  1. Filing01/06/89
  2. Publication03/05/91
  3. Examination09/17/91
  4. Allowance09/15/98
  5. Grant12/29/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 12/18/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

USX Engineers And Consultants, Inc

US

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Inventors

C. K. (pessoa física)

US

E. B. (pessoa física)

US

L. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

147.479 · 01/25/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 06/01/2009

12/18/2012

RPI 2189

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

09/15/1998

RPI 1447

Exigência - art. 36 da LPI

#6.1

01/06/1998

RPI 1411

Solicitação de exame técnico

#4.1

09/17/1991

RPI 1085

Notificação de entrada na fase nacional - PCT

#1.3

03/05/1991

RPI 1057

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