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Official data from INPI

LENTE OFTÁLMICA MULTIFOCAL PROGRESSIVA

Em AnáliseInvention Patent

Application data

Number

PI8605016

Type

Invention Patent

Filing

10/14/1986

Publication

07/14/1987

Progress at the INPI

  1. Filing10/14/86
  2. Publication07/14/87
  3. Examination10/27/87
  4. Allowance01/28/92
  5. Grant10/27/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Essilor International (Compagnie Generale D'Optique)

FR

See this company's full portfolio

Inventors

B. M. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85 15322 · 10/16/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/27/1987

RPI 888

Publicação do pedido de patente

#3.1

07/14/1987

RPI 873

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 14/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

06/09/1992

RPI 1123

Deferimento

#9.1

01/28/1992

RPI 1104

Exigência - art. 36 da LPI

#6.1

09/10/1991

RPI 1084

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