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Official data from INPI

CONJUNTO DE ANEL PARA PISTAO E PROCESSO PARA A FABRICACAO DO MESMO

ConcedidaInvention Patent

Application data

Number

PI7801530

Type

Invention Patent

Filing

03/18/1977

Publication

-

Progress at the INPI

  1. Filing03/18/77
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant08/30/83
  6. Terminated06/29/93

The patent was granted on 08/30/1983 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/30/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DANA CORP

See this company's full portfolio

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

07/13/1982

RPI 612

Exigência - art. 36 da LPI

#6.1

02/24/1982

RPI 592

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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