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Official data from INPI

APERFEICOAMENTO EM CELULA ELETROQUIMICA ENROLADA EM ESPIRAL;PROCESSO E APARELHO PARA ENROLAR EM ESPIRAL PLACAS E ELETRODOS E SEPARADORES;E MANDRIL

ConcedidaInvention Patent

Application data

Number

PI7706848

Type

Invention Patent

Filing

10/18/1976

Publication

-

Progress at the INPI

  1. Filing10/18/76
  2. Publication
  3. Examination
  4. Allowance03/29/83
  5. Grant09/27/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 09/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GATES RUBBER CO

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Inventors

H. L. (pessoa física)

M. D. (pessoa física)

U. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/29/1983

RPI 649

Exigência - art. 36 da LPI

#6.1

08/10/1982

RPI 616

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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