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Official data from INPI

2-ADAMANTIL BENZOPIRANOS, AS COMPOSIÇÕES E MATRIZES (CO) POLÍMERAS CONTENDO-OS

ArquivadaInvention PatentPCT · US1997023664

Application data

Number

PI9713001

Type

Invention Patent

Filing

12/10/1997

Publication

01/25/2000

PCT

US1997023664

Progress at the INPI

  1. Filing12/10/97
  2. Publication01/25/00
  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.

Talk to a specialist

Latest action published by the INPI: 01/31/2006. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. I. (pessoa física)

US

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Inventors

Y. C. (pessoa física)

FR

Technical data

Priority claims

FR

96/15850 · 12/23/1996

US

60/038,357 · 02/13/1997

Abstract

Patente de Invenção para "2-ADAMANTIL BENZOPIRANOS, AS COMPOSIÇÕES E AS MATRIZES (CO)POLÍMERAS CONTENDO-OS" . A presente invenção refere-se a novos derivados benzopiranos, substituídos na posição 2 com um grupo adamantil, bem como as composicões e as matrizes (co)polímeras contendo tais derivados. O dito derivado possui interessantes propriedades fotocromáticas.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

01/31/2006

RPI 1830

Exigência - art. 36 da LPI

#6.1

07/26/2005

RPI 1803

Notificação de entrada na fase nacional - PCT

#1.3

01/25/2000

RPI 1516

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