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Official data from INPI

APERFEICOAMENTO EM AMORTECEDOR TIPO BORRACHA

ConcedidaInvention Patent

Application data

Number

PI7800914

Type

Invention Patent

Filing

02/16/1977

Publication

-

Progress at the INPI

  1. Filing02/16/77
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant09/27/83
  6. Terminated09/18/90

The patent was granted on 09/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain 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

MINNESOTA MINING & MFG

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Inventors

B. J. (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

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

15.0

06/08/1982

RPI 607

Exigência - art. 36 da LPI

#6.1

04/20/1982

RPI 600

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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