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Official data from INPI

VÁLVULA DE CONTROLE DE PRESSÃO DE CIRCUITO DUPLO.

ConcedidaInvention Patent

Application data

Number

PI8101340

Type

Invention Patent

Filing

03/09/1981

Publication

-

Progress at the INPI

  1. Filing03/09/81
  2. Publication
  3. Examination09/27/83
  4. Allowance10/16/84
  5. Grant08/26/86
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alfred Teves GmbH

DE

See this company's full portfolio

Inventors

S. B. (pessoa física)

T. P. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 30 09 292.3 · 03/11/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

03/11/1986

RPI 803

110

11/12/1985

RPI 786

110

10/08/1985

RPI 781

Recurso

#12.1

02/12/1985

RPI 747

Republicação - classificação IPC

#15.11

11/27/1984

RPI 736

Deferimento

#9.1

10/16/1984

RPI 730

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

09/27/1983

RPI 675

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

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