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Official data from INPI

Processo e aparelho para a têmpera de folhas de vidro

Arquivada/ExtintaInvention PatentPCT · US1989000561

Application data

Number

PI8905994

Type

Invention Patent

Filing

02/10/1989

Publication

11/20/1990

PCT

US1989000561

Progress at the INPI

  1. Filing02/10/89
  2. Publication11/20/90
  3. Examination12/10/91
  4. Allowance09/09/97
  5. Grant07/28/98
  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

Libbey-Owens-Ford Co

US

Pilkington PlC

GB

See this company's full portfolio

Inventors

A. W. (pessoa física)

GB

G. G. (pessoa física)

GB

J. F. (pessoa física)

US

J. B. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

155.259 · 02/12/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/02/2009

12/18/2012

RPI 2189

Concessão da patente

#16.1

07/28/1998

RPI 1440

Deferimento

#9.1

09/09/1997

RPI 1397

Exigência - art. 36 da LPI

#6.1

04/15/1997

RPI 1376

Exigência - art. 36 da LPI

#6.1

08/13/1996

RPI 1341

Exigência - art. 36 da LPI

#6.1

01/02/1996

RPI 1309

Solicitação de exame técnico

#4.1

12/10/1991

RPI 1097

Notificação de entrada na fase nacional - PCT

#1.3

11/20/1990

RPI 1042

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