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Official data from INPI

PROCESSO E DISPOSITIVO PARA EXAMINAR AS DOBRAS DE FUNDOS,DE FUNDOS FORMADOS EM PEDACOS DE MANGUEIRA

ConcedidaInvention Patent

Application data

Number

PI7900710

Type

Invention Patent

Filing

02/23/1978

Publication

-

Progress at the INPI

  1. Filing02/23/78
  2. Publication
  3. Examination
  4. Allowance12/20/83
  5. Grant06/26/84
  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.

Talk to a specialist

Latest action published by the INPI: 06/26/1984. 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

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

06/07/1983

RPI 659

Exigência - art. 36 da LPI

#6.1

12/14/1982

RPI 634

6.2

01/26/1982

RPI 588

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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