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Official data from INPI

FREIO A DISCO

ConcedidaInvention Patent

Application data

Number

PI7902243

Type

Invention Patent

Filing

04/15/1978

Publication

-

Progress at the INPI

  1. Filing04/15/78
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant05/31/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 05/31/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TOKICO LTD

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Inventors

H. T. (pessoa física)

T. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

04/05/1983

RPI 650

100

01/11/1983

RPI 638

Petição de recurso

#12.2

08/31/1982

RPI 619

Indeferimento

#9.2

05/18/1982

RPI 604

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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