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Official data from INPI

SISTEMA PERMANENTE PARA CALENDÁRIOS.

Concessão AnuladaUtility Model

Application data

Number

MU5901151

Type

Utility Model

Filing

08/27/1979

Publication

-

Progress at the INPI

  1. Filing08/27/79
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/28/84
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 05/15/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. A. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

05/15/1984

RPI 708

Concessão da patente

#16.1

02/28/1984

RPI 697

110

11/16/1983

RPI 682

120

06/21/1983

RPI 661

Petição de recurso

#12.2

02/16/1983

RPI 643

Indeferimento

#9.2

09/21/1982

RPI 622

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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