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Official data from INPI

Lentes Fotocromáticas aperfeiçoadas

ArquivadaInvention PatentPCT · US1998001640

Application data

Number

PI9808615

Type

Invention Patent

Filing

01/29/1998

Publication

05/16/2000

PCT

US1998001640

Progress at the INPI

  1. Filing01/29/98
  2. Publication05/16/00
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 08/22/2006. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. I. (pessoa física)

US

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Inventors

M. P. (pessoa física)

FR

Y. B. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

97/01164 · 02/03/1997

US

60/038,716 · 03/07/1997

Abstract

Patente de Invenção para "LENTES FOTOCROMÁTICAS APERFEIÇOADAS" A invenção se refere a lentes fotocromáticas com propriedades aperfeiçoadas possuindo a seguinte composição, em % peso: SiO~ 2~: 51 - 66, B~ 2~O~ 3~: 15 - 23, Al~ 2~O~ 3~: 3 - 10, ZrO~ 2~: 2.5 - 11, TiO~ 2~: 0 - 1, Li~ 2~O: 3 - 7, Na~ 2~: 0 - 8, K~ 2~O: 0 - 8, K~ 2! O: 2 - 9, Ag: 0.080 - 0.30, CuO 0.0020 - 0.0130, Cl: 0.1 - 0.6, Br: 0.040 - 0.3, MgO: 0 - 3, CaO: 0 - 3, SrO: 0 - 3, BaO: 0 - 3, Nb~ 2~O~ 5~: 0 - 1, La~ O~: 0 - 8, Y~ 2~O~ 3~: 0 - 8 com 0.2 AG/(Cl+Br) 0.5, Br/(ClBr) 0.15, 0.5 La~ 2~O~ 3~+ Y~ 2~O~ 3~ 8, TiO~ 2~ + Nb~2~O~ 5~ 1.2, 10 Al~ 2~O~ 3~+ ZrO~ 2~ 17, MgO + CaO + SrO + BaO 6. Refere-se também ao seu uso para a produção de lentes oftálmicas.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

08/22/2006

RPI 1859

Exigência - art. 36 da LPI

#6.1

01/03/2006

RPI 1826

Notificação de entrada na fase nacional - PCT

#1.3

05/16/2000

RPI 1532

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