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Official data from INPI

CABEÇOTE REVERSÍVEL PARA EXTRUSORA DE FILME PLÁSTICO.

ConcedidaUtility Model

Application data

Number

MU6001577

Type

Utility Model

Filing

11/24/1980

Publication

-

Progress at the INPI

  1. Filing11/24/80
  2. Publication
  3. Examination
  4. Allowance04/26/83
  5. Grant02/28/84
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 02/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gerst Indústria e Comércio de Máquinaas Ltda.

Inventors

G. V. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1984

RPI 697

110

12/06/1983

RPI 685

Recurso

#12.1

08/09/1983

RPI 668

Deferimento

#9.1

04/26/1983

RPI 653

Republicação - classificação IPC

#15.11

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

10/05/1982

RPI 624

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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