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Official data from INPI

PROCESSO DE OBTENCAO DE PELICULA PLASTICA CELULAR

ConcedidaInvention Patent

Application data

Number

PI7804386

Type

Invention Patent

Filing

07/07/1978

Publication

-

Progress at the INPI

  1. Filing07/07/78
  2. Publication
  3. Examination
  4. Allowance11/30/82
  5. Grant09/06/83
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 09/06/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PROPACK IND COM PLASTICOS LTD

Inventors

N. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/06/1983

RPI 672

Notificação para pagamento de retribuição

#13.1

05/10/1983

RPI 655

Deferimento

#9.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

06/29/1982

RPI 610

Conhecimento de parecer técnico

#7.1

12/15/1981

RPI 582

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B29D 7/02; B65D 81/00.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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