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Official data from INPI

SLIDE DE CARACTERES OU OPTOTIPOS PARA USO EM PROJETORES DE OPTOTIPOS

Em AnáliseUtility Model

Application data

Number

MU5701081

Type

Utility Model

Filing

09/02/1977

Publication

-

Progress at the INPI

  1. Filing09/02/77
  2. Publication
  3. Examination
  4. Allowance10/13/82
  5. Grant11/29/83
  6. Expired12/31/24

The letters patent expired on 12/31/2024: 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: 01/07/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. R. (pessoa física)

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

320

01/07/1986

RPI 794

300

10/15/1985

RPI 782

Anuidade - prazo legal encerrado

#18.2

08/27/1985

RPI 775

201

06/11/1985

RPI 764

Cessão de direito de exploração

#22.1

02/26/1985

RPI 749

Pedido de licença voluntária

#17.1

01/15/1985

RPI 743

Concessão da patente

#16.1

11/29/1983

RPI 684

110

08/16/1983

RPI 669

Recurso

#12.1

02/22/1983

RPI 644

Deferimento

#9.1

10/13/1982

RPI 625

Exigência - art. 36 da LPI

#6.1

02/24/1982

RPI 592

Carta-patente expirada

#21.1

PATENTE EXTINTA EM 02/09/1987

12/31/2024

RPI 2817

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