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Official data from INPI

COMPOSICOES DE RESINA TERMOPLASTICA PARA MOLDAGEM

DeferidaInvention Patent
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Application data

Number

PI7801739

Type

Invention Patent

Filing

04/01/1977

Publication

-
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Progress at the INPI

  1. Filing04/01/77
  2. Publication
  3. Examination
  4. Allowance07/14/87
  5. Grant
  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: 07/14/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

POLYPLASTICS CO

Inventors

I. Y. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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