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Official data from INPI

FILAMENTO ÓPTIMO COM ÍNDICE GRADATIVO E GRANDE AMPLITUDE DE BANDA E PROCESSO PARA FORMAR UM PRÉ-FORMADO PARA UM FILAMENTO ÓPTICO.

Em AnáliseInvention Patent

Application data

Number

PI7904787

Type

Invention Patent

Filing

07/26/1979

Publication

-

Progress at the INPI

  1. Filing07/26/79
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  6. In force07/26/99

The patent was granted on 07/26/1983 and is in force until 07/26/1999. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:07/26/1999

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Latest action published by the INPI: 12/01/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. W. (pessoa física)

US

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Inventors

O. R. (pessoa física)

S. A. (pessoa física)

Technical data

Priority claims

US

929.415 · 07/31/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

311

12/01/1987

RPI 893

300

06/23/1987

RPI 870

300

05/05/1987

RPI 863

334

03/17/1987

RPI 856

311

09/03/1985

RPI 776

201

02/12/1985

RPI 747

Pedido de licença voluntária

#17.1

08/21/1984

RPI 722

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

06/29/1982

RPI 610

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era G02B 5/14.

03/27/2018

RPI 2464

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