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Official data from INPI

TIRA DE PAPEL DE ENSAIO

Arquivada/ExtintaUtility Model

Application data

Number

MU5800808

Type

Utility Model

Filing

07/01/1977

Publication

-

Progress at the INPI

  1. Filing07/01/77
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant09/27/83
  6. Expired09/13/88

The letters patent expired on 09/13/1988: 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROEHM GMBH

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Inventors

H. R. (pessoa física)

H. D. (pessoa física)

K. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

09/13/1988

RPI 934

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

Conhecimento de parecer técnico

#7.1

12/22/1981

RPI 583

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