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Official data from INPI

PROCESSO PARA PRODUZIR ADESIVO SENSIVEL A PRESSAO,E PROCESSO PARA OBTENCAO DE UM MATERIAL EM FOLHA REVESTIDO COM UM ADESIVO

ConcedidaInvention Patent

Application data

Number

PI7900748

Type

Invention Patent

Filing

02/08/1978

Publication

-

Progress at the INPI

  1. Filing02/08/78
  2. Publication
  3. Examination
  4. Allowance03/08/83
  5. Grant08/30/83
  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: 08/30/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

H. S. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/28/1983

RPI 662

Deferimento

#9.1

03/08/1983

RPI 646

6.2

05/04/1982

RPI 602

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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