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Official data from INPI

ANTAGONISTAS DE LTB4 À BASE DE BENZOPIRANO E AFINS

Em AnáliseInvention PatentPCT · US1992009496

Application data

Number

PI9207061

Type

Invention Patent

Filing

11/13/1992

Publication

12/26/1995

PCT

US1992009496

Progress at the INPI

  1. Filing11/13/92
  2. Publication12/26/95
  3. Abandoned04/02/96
  4. Allowance
  5. Grant
  6. In force

The applicant withdrew the application. The case ended without a patent.

Talk to a specialist

Latest action published by the INPI: 01/21/1998. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pfizer, Inc.

US

See this company's full portfolio

Inventors

K. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

824412 · 01/23/1992

Abstract

Antagonistas de leucotrieno B~ 4~ à base de benzopirano e outros benzo condensados têm a fórmula (Fig. I) em que R^ 1^ é um grupo fenila ou fenila substituída, e A, n, R^ 2^ e R^ 3^ são tal como foram aqui definidos.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

10.1

01/21/1998

RPI 1413

Solicitação de exame técnico

#4.1

04/02/1996

RPI 1322

Notificação de entrada na fase nacional - PCT

#1.3

12/26/1995

RPI 1308

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