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Official data from INPI

PELICULA RESISTENTE A ABRASAO,RESISTENTE AO EMBRANQUECIMENTO,E COMPOSICAO POLIMERIZAVEL

ConcedidaInvention Patent

Application data

Number

PI7801847

Type

Invention Patent

Filing

03/28/1977

Publication

-

Progress at the INPI

  1. Filing03/28/77
  2. Publication
  3. Examination
  4. Allowance03/07/84
  5. Grant09/25/84
  6. Terminated06/29/93

The patent was granted on 09/25/1984 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

L. L. (pessoa física)

M. A. (pessoa física)

S. K. (pessoa física)

Z. L. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

06/26/1984

RPI 714

Deferimento

#9.1

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

Exigência - art. 36 da LPI

#6.1

10/05/1982

RPI 624

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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