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Official data from INPI

SEM TITULO

Concessão AnuladaInvention Patent
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Application data

Number

PI7405487

Type

Invention Patent

Filing

07/03/1974

Publication

-
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Progress at the INPI

  1. Filing07/03/74
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant01/31/84
  6. Expired11/24/92

The letters patent expired on 11/24/1992: 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: 04/17/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chemische Fabrik Stockhausen & Cie

DE

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

04/17/1984

RPI 704

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

6.5

01/04/1983

RPI 637

11.7

10/26/1982

RPI 627

Arquivamento - Art. 36 §1° da LPI

#11.2

06/01/1982

RPI 606

Carta-patente expirada

#21.1

11/24/1992

RPI 1147

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