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Official data from INPI

DISPOSITIVO PARA O EXAME DAS DOBRAS DO FUNDO,DE FUNDOS CONFORMADOS EM PECAS DE MANGUEIRA

Em AnáliseInvention Patent

Application data

Number

PI7900780

Type

Invention Patent

Filing

02/13/1978

Publication

-

Progress at the INPI

  1. Filing02/13/78
  2. Publication
  3. Examination
  4. Allowance03/09/82
  5. Grant
  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: 06/29/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WINDMOELLER & HOELSCHER

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

06/29/1982

RPI 610

Deferimento

#9.1

03/09/1982

RPI 594

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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