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Official data from INPI

SEM TITULO

Arquivada/ExtintaUtility Model

Application data

Number

MU5701680

Type

Utility Model

Filing

12/16/1977

Publication

-

Progress at the INPI

  1. Filing12/16/77
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant05/31/83
  6. Expired08/16/88

The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

08/16/1988

RPI 930

Pedido de licença compulsória

#20.1

11/01/1983

RPI 680

Concessão da patente

#16.1

05/31/1983

RPI 658

100

01/11/1983

RPI 638

15.0

12/14/1982

RPI 634

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