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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI7601220

Type

Invention Patent

Filing

02/25/1976

Publication

-

Progress at the INPI

  1. Filing02/25/76
  2. Publication
  3. Examination
  4. Allowance09/21/82
  5. Grant05/31/83
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 05/31/1983. 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).

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

01/25/1983

RPI 640

Deferimento

#9.1

09/21/1982

RPI 622

8.1

03/09/1982

RPI 594

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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