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Official data from INPI

DISPOSITIVO PARA O EXAME DAS DOBRAS DE FUNDOS,DE FUNDOS CONFORMADOS EM PECAS DE MANQUEIRA

ConcedidaInvention Patent

Application data

Number

PI7900645

Type

Invention Patent

Filing

02/08/1978

Publication

-

Progress at the INPI

  1. Filing02/08/78
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant03/29/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WINDMOELLER & HOELSCHER

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Inventors

F. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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