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Official data from INPI

APERFEICOAMENTO EM DISPERSAO AQUOSA DE TINTA

ConcedidaInvention Patent

Application data

Number

PI7705567

Type

Invention Patent

Filing

09/20/1976

Publication

-

Progress at the INPI

  1. Filing09/20/76
  2. Publication
  3. Examination
  4. Allowance01/05/82
  5. Grant08/31/82
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 08/31/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FORD MOTOR CO

See this company's full portfolio

Inventors

C. M. (pessoa física)

D. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

05/04/1982

RPI 602

15.0

01/12/1982

RPI 586

Deferimento

#9.1

01/05/1982

RPI 585

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

Pedido de licença compulsória

#20.1

07/31/1990

RPI 1026

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