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Official data from INPI

MASSA SENSIVEL A RADIACAO

Em AnáliseInvention Patent

Application data

Number

PI7802525

Type

Invention Patent

Filing

04/25/1977

Publication

-

Progress at the INPI

  1. Filing04/25/77
  2. Publication
  3. Examination
  4. Allowance08/10/82
  5. Grant02/22/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 04/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOECHST AG

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Inventors

B. G. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.9

04/26/1983

RPI 653

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

10/19/1982

RPI 626

100

08/10/1982

RPI 616

Recurso

#12.1

03/02/1982

RPI 593

Deferimento

#9.1

10/20/1981

RPI 574

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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