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Official data from INPI

DISPOSICÃO DE PISTÃO.

ConcedidaInvention Patent

Application data

Number

PI8004271

Type

Invention Patent

Filing

07/09/1980

Publication

-

Progress at the INPI

  1. Filing07/09/80
  2. Publication
  3. Examination
  4. Allowance04/17/84
  5. Grant06/24/86
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. S. (pessoa física)

DE

Inventors

H. E. (pessoa física)

H. W. (pessoa física)

S. K. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 29 27 777.8 · 07/10/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

12/03/1985

RPI 789

110

09/17/1985

RPI 778

Recurso

#12.1

08/07/1984

RPI 720

Deferimento

#9.1

04/17/1984

RPI 704

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

Pedido de certificado de adição de invenção

#5.1

11/24/1981

RPI 579

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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