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Official data from INPI

COMPOSICAO DE RESINA ESTABILIZADA E COMPOSICAO ESTABILIZADORA

Em AnáliseInvention Patent
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Application data

Number

PI7500370

Type

Invention Patent

Filing

01/21/1974

Publication

-
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Progress at the INPI

  1. Filing01/21/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

Inventors

W. L. (pessoa física)

W. R. (pessoa física)

Technical data

IPC Classification

C08K 5/58C08L 101/00C08L 27/06C08L 33/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

09/06/1988

RPI 933

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

20.11

02/14/1984

RPI 695

Pedido de licença compulsória

#20.1

02/07/1984

RPI 694

20.11

01/17/1984

RPI 691

20.4

12/06/1983

RPI 685

Pedido de licença compulsória

#20.1

11/08/1983

RPI 681

20.4

11/01/1983

RPI 680

Concessão da patente

#16.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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