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Official data from INPI

INSTRUMENTO DE ESCREVER COMPOSTO

ConcedidaInvention Patent

Application data

Number

PI7805018

Type

Invention Patent

Filing

08/05/1977

Publication

-

Progress at the INPI

  1. Filing08/05/77
  2. Publication
  3. Examination
  4. Allowance06/14/83
  5. Grant09/27/83
  6. Expired12/14/93

The letters patent expired on 12/14/1993: 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: 09/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ZEBRA CO LTD

Inventors

K. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1983

RPI 675

100

06/14/1983

RPI 660

Petição de recurso

#12.2

03/01/1983

RPI 645

Indeferimento

#9.2

08/17/1982

RPI 617

6.2

12/29/1981

RPI 584

Carta-patente expirada

#21.1

12/14/1993

RPI 1202

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