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Official data from INPI

DISPOSIÇÃO INTRODUZIDA EM LENTES DE AÇÃO PROGRESSIVA

PublicadaUtility Model

Application data

Number

MU6800523

Type

Utility Model

Filing

03/16/1988

Publication

10/31/1989

Progress at the INPI

  1. Filing03/16/88
  2. Publication10/31/89
  3. Examination03/20/90
  4. Allowance12/10/91
  5. Grant09/29/92
  6. Expired09/25/01

The letters patent expired on 09/25/2001: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Poly-Gran Industria e comércio de Produtos Oticos Ltda

RJ, BR

Inventors

P. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

10/31/1989

RPI 993

Pedido de patente depositado

#2.1

04/04/1989

RPI 963

Carta-patente expirada

#21.1

Patente extinta em 16/03/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).

09/25/2001

RPI 1603

Concessão da patente

#16.1

09/29/1992

RPI 1139

Notificação para pagamento de retribuição

#13.1

05/05/1992

RPI 1118

Deferimento

#9.1

12/10/1991

RPI 1097

Solicitação de exame técnico

#4.1

03/20/1990

RPI 1010

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