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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI7808768

Type

Invention Patent

Filing

04/26/1978

Publication

-
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Progress at the INPI

  1. Filing04/26/78
  2. Publication
  3. Examination
  4. Allowance04/17/84
  5. Grant11/27/84
  6. Expired05/31/94

The letters patent expired on 05/31/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 11/27/1984. 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

H04N 5/50

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

08/07/1984

RPI 720

Deferimento

#9.1

04/17/1984

RPI 704

8.1

02/07/1984

RPI 694

Exigência - art. 36 da LPI

#6.1

08/30/1983

RPI 671

Republicação - classificação IPC

#15.11

04/05/1983

RPI 650

Exigência - art. 36 da LPI

#6.1

03/01/1983

RPI 645

4.2.3

08/03/1982

RPI 615

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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