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Official data from INPI

DISPOSITIVO PARA VISAO BINOCULAR DE LUZ RESIDUAL NO ESPECTRO VISIVEL E NO ESPECTRO PROXIMO AO INFRAVERMELHO

Em AnáliseInvention Patent

Application data

Number

PI7902789

Type

Invention Patent

Filing

05/09/1978

Publication

-

Progress at the INPI

  1. Filing05/09/78
  2. Publication
  3. Examination10/27/81
  4. Allowance07/27/82
  5. Grant03/29/83
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OPTISCHE IND DE OUDE DELFT NV

Inventors

G. A. (pessoa física)

V. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.8

09/02/1986

RPI 828

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

12/14/1982

RPI 634

Deferimento

#9.1

07/27/1982

RPI 614

Solicitação de exame técnico

#4.1

10/27/1981

RPI 575

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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