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Official data from INPI

PROCESSO PARA A PROTEÇÃO DE OBJETOS DE AÇO ZINCADO CONTRA CORROSÃO, E, COMPOSIÇÃO ÁCIDA AQUOSA LÍQUIDA

Arquivada/ExtintaInvention PatentPCT · US1990005529

Application data

Number

PI9007688

Type

Invention Patent

Filing

09/27/1990

Publication

07/07/1992

PCT

US1990005529

Progress at the INPI

  1. Filing09/27/90
  2. Publication07/07/92
  3. Examination08/17/93
  4. Allowance07/27/99
  5. Grant12/28/99
  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. C. (pessoa física)

US

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Inventors

K. S. (pessoa física)

JP

N. Y. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

H1-251165 · 09/27/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/09/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

12/28/1999

RPI 1512

Deferimento

#9.1

07/27/1999

RPI 1490

Exigência - art. 36 da LPI

#6.1

10/27/1998

RPI 1451

Solicitação de exame técnico

#4.1

08/17/1993

RPI 1185

Notificação de entrada na fase nacional - PCT

#1.3

07/07/1992

RPI 1127

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